Subject nation

Subject nations are semi-autonomous subordinate nations that surrender their economic, diplomatic and/or military power to their overlord in exchange for protection. It is possible to see a subject's nation information by selecting the country icon on the subjects tab. The types of subject nations range from the primarily economic Trade company to the military-focused March. All subjects (except trade companies) have a liberty desire that determines their loyalty towards their liege.
Unless stated otherwise, all subject nations also receive the following "Subject nation" malus:

	−6	Tax income
	−3	Land force limit
	−6	Naval force limit

Subject types[edit | edit source]

Vassal[edit | edit source]

Main article: Vassal

Vassals are the most basic form of subject nations. While vassals may have control over their own territory and military, they also automatically join any conflict their overlord enters into.

Subject	Vassal
Subject Nation penalty
Diplomatic relation slot
Subject tax	1 × income from subject × their tax income If the overlord is a merchant republic: Vassals transfer 50% of their trade power to the overlord
Overlord force limit increase	10% of the subject's land force limit
Liberty desire calculation	Calculates based on all (incorporated) vassals, eyalets, marches, pronoias and soyurghals for army, navy and economic size comparison Per development:[1] 0.25 If they are a client state: −25%
Integratable after	10 years
Integration cost	100%
Effects on subject	+50% development cost
Effects on overlord	+1 Land force limit
Independent diplomacy?
Gained via	The "X Vassal" peace treaty The "Offer Vassalization" diplomatic action Releasing owned land as a vassal through the diplomacy tab
Notes

Vassals cannot declare war (except with the Independence CB against their overlord), but can fabricate claims that either they or their overlord deems as 'vital interest'. Vassals which do not have a truce with their overlord can request a support of independence from other nations. AI vassals don't do that if they have a loyal attitude towards their overlord (Below 50% liberty desire the attitude changes to loyal on the next month tick if the attitude is not outraged). A vassal can break free through an independence war (AI vassals don't do that if they have a truce or are loyal). Vassals which are not loyal are also more active diplomatically as to forming their own alliances with other rebellious subjects of their overlord, seeking foreign support for their independence, and setting more provinces as those of interest.

March[edit | edit source]

Main article: March

A march is a militaristic vassal that cannot be annexed and does not pay taxes to the overlord, but gets significant bonuses to its armed forces.

Subject	March
Subject Nation penalty
Diplomatic relation slot
Subject tax	If the overlord is a merchant republic: Marches transfer 50% of their trade power to the overlord
Overlord force limit increase	20% of the subject's land force limit
Liberty desire calculation	Base: −15% Calculates based on all (incorporated) vassals, eyalets, marches, pronoias and soyurghals for army, navy and economic size comparison Per development:[1] 0.25 If they are a client state: −25%
Integratable after
Integration cost
Effects on subject	If total development is at most 25% of the development of their overlord: +30% Land force limit +30% Naval force limit +25% National manpower modifier +20% Manpower recovery speed +20% Fort defense −20% Fort maintenance −20% Land maintenance modifier −20% Naval maintenance modifier
Effects on overlord	+1 Land force limit
Independent diplomacy?
Gained via	The "Designate March" diplomatic action, used on a regular vassal

March status can be revoked and the subject turned into a simple vassal, but at the cost of stability and relations loss.

Client state[edit | edit source]

Main article: Client state

Client states are highly loyal, custom vassals. They are unlocked by either getting diplomatic technology level 23, using the Mercenary–Influence policy "Client State Act", or having the level 2 monarchy reform "Reform the Pronoiar System" (limited to Byzantium, the Roman Empire, and custom nations). They can be formed from any province or provinces that the player has control over and is on the same continent as their capital or borders an existing client state or has a land connection to the capital.

Mechanically they function like a ordinary vassal but with a permanent −25% to their liberty desire.

Client states cannot be turned into daimyos or incorporated vassals, but they can be designated as marches.

Generally, any province within two tiles by land can be added to a client state, including over straits. The first province that a new client state is given is automatically designated as the capital, and the culture in that province will become the primary culture of the new client state. The client state will have its creator's state religion. The client state gets a automatic core on its capital but will have to create cores on other provinces manually.

It is possible to customize the flag, the name, and the map colour of a client state based on a set of flag templates and images when it's created and at any time after then.

Daimyo[edit | edit source]

Main article: Japan#Daimyo & Shogunate

Available only with the Mandate of Heaven DLC enabled.

Daimyo are a unique form of vassal for the shogun of Japan. They may ally with and fight other daimyo (typically with the Sengoku CB), but not foreign countries. They also have a special War for the Emperor CB targeting their overlord to take their place as shogun.

Subject	Daimyo
Subject Nation penalty
Diplomatic relation slot
Subject tax	1 × income from subject × their tax income
Overlord force limit increase	10% of the subject's land force limit
Liberty desire calculation	Base: +10% Calculates only own value; for army, navy and economic size comparison Per development:[1] 0.25
Integratable after	10 years
Integration cost	100%
Effects on subject
Effects on overlord	For each daimyo at peace: −2%.0 Stability cost modifier (maximum of −20%) +0.1% Yearly legitimacy (maximum of +1) For each daimyo with the same level of isolationism as the Shogun: +0.1% Yearly prestige For each daimyo with a different level of isolationism as the Shogun: −0.05 Yearly prestige The above isolationism modifiers combined cannot exceed either −1 or +1 yearly prestige.
Independent diplomacy?	Can declare war on other Daimyos Can ally other daimyos Can rival other daimyos
Gained via	Every vassal of a nation with the Shogunate tier 1 reform will turn into a daimyo, except client states.
Notes	Should a daimyo conquer the province of Kyoto (1020), they will become the Shogun and the defender and all other daimyos will become their subject daimyo.

Outside nations can enforce peace on two warring daimyo without calling the shogun or its vassals to war, effectively providing a way for outside powers to get easy land in Japan.

Incorporated vassal[edit | edit source]

Available only with the Winds of Change DLC enabled.

Subject	Incorporated vassal
Subject Nation penalty
Diplomatic relation slot
Subject tax	1 × income from subject × their tax income
Overlord force limit increase	10% of the subject's land force limit
Liberty desire calculation	Calculates based on all (incorporated) vassals, eyalets, marches, pronoias and soyurghals for army, navy and economic size comparison Per development:[1] 0.25
Integratable after	10 years
Integration cost	75%
Effects on subject	+50% development cost
Effects on overlord	+1 Land force limit −100 Governing capacity
Independent diplomacy?
Gained via	The "Incorporate Vassal" diplomatic action, used on a regular vassal.
Notes	In general only available to germany via the "Imperial descent" government reform, but there are several missions that can award Incorporated vassals.

The following is a list of all missions that reward this subject type:

• The Tatar and Mongol "March into Central Asia" mission, if Kazakh was previously released (does not reduce governing capacity)
• The Austrian "A.E.I.O.U" mission unlocks the ability to create these subjects. (max 5?)
• The Bohemian "Consolidate Silesia" mission, if completed diplomatically – for Silesia (does not reduce governing capacity)
• The Timurids "Ambition in Yuan" mission, on the "Nomad" branch if the "We shall follow in his footsteps." option is chosen in the "Yuan Campaign" event- for Yuan (does not reduce governing capacity)

Personal union[edit | edit source]

Main article: Personal union

Junior partners in a personal union share the same ruler and heir as that of the leading country. Unlike vassals, unions do not have to provide their overlord with a percentage of their monthly income, and only get a small +10 relations boost with their overlord.

Subject	Personal union
Subject Nation penalty
Diplomatic relation slot
Subject tax
Overlord force limit increase
Liberty desire calculation	Adds overlord prestige below 0 × 1 Calculates only own value; for army, navy and economic size comparison Ignores development
Integratable after	50 years
Integration cost	100% Alternatively, unions can be inherited: Inheritance automatically annexes the junior partner with no autonomy, but occurs only upon ruler death. The probability of inheritance increases with the senior partner's diplomatic reputation and stability and decreases with the junior partner's number of provinces.
Effects on subject	None
Effects on overlord	None
Independent diplomacy?
Gained via	Personal unions can occur when a ruler dies without a legal heir. In this case, if a royal marriage partner shares the same dynasty as the deceased ruler, it becomes the senior partner in a union. Additionally, a Claim Throne casus belli can be used on nations with a disputed succession (weak or no heir) of the same dynasty that the player has a royal marriage with.
Notes	Only nations that have one of the Christian denominations as their state religion are able to be the junior partner in personal unions or, under normal circumstances, become the senior partner. When a union forms peacefully, a succession war may erupt between rivals or other valid partners. Junior partners retain all non-PU subjects they had (PU subjects will be transferred to the senior partner). They can also have their own colonial nations. Should the ruler die while the junior has negative opinion, the union will be broken.

Some nations can get a Restoration of Union CB against countries that they never had a union with in the first place, such as Austria, which can receive this casus belli against Bohemia and Hungary as a mission.

Integrated personal union[edit | edit source]

Available only with the Winds of Change DLC enabled.

Subject	Integrated personal union
Subject Nation penalty
Diplomatic relation slot
Subject tax
Overlord force limit increase
Liberty desire calculation	Adds overlord prestige below 0 × 1 Calculates only own value; for army, navy and economic size comparison Ignores development
Integratable after	50 years
Integration cost	75%
Effects on subject	None
Effects on overlord	None
Independent diplomacy?
Gained via	Several missions
Notes	In general only available to Austria via the "A.E.I.O.U" Mission, but there are several missions that can award integrated personal unions. There is a maximum amount of integrated personal unions a nation can have.

The following is a list of all missions that reward this subject type:

• The Austrian "Royal Hungary" mission, for Hungary
• The Austrian "Crown of Spain" mission, for Castile or Spain

Theodoro personal union[edit | edit source]

Internally the game has another personal union type, called "Theodoro personal union". In game this is simply called "Personal Union" and functions much like one. However, like an intergated personal union, this type of union is 25% cheaper to annex. The following is a list of all the ways to gain this subject type:

• The Theodoro "The Rus will be part of [Root.GetName]" option of the "Atop the Kremlin" event, triggered by the "Palace of the Tsars" mission on the "Russian Claims" branch, for whatever Russian PU was gained earlier (usually Muscovy).
• The Netherlands "They belong under the Dutch realm." option of the "The Throne of England" event, triggered by the "Glorious Revolution" mission for England or Great Britain.

Colonial nation[edit | edit source]

Main article: Colonial nation

Colonial nations represent the distant New World colonial territories of Old World countries. They will automatically form once five cored colonial provinces exist inside a single colonial region. Once formed, colonial nations will take control of any province that would otherwise be owned by their overlord in a given colonial region, even if the province is uncored or would otherwise cause extreme overextension.

Subject	Colonial nation
Subject Nation penalty
Diplomatic relation slot
Subject tax	Colonial nations transfer 50% of their trade power to the overlord Global tariffs × 50% production income Global tariffs × 50% trade income
Overlord force limit increase
Liberty desire calculation	Adds overlord's mercantilism × 0.25 Adds overlord's administrative efficiency × 0.2 Adds overlord's War exhaustion x 1 Adds overlord's global tariffs × 1 Calculates only own value; for army, navy and economic size comparison Per development:[1] 0.1
Integratable after
Integration cost
Effects on subject
Effects on overlord	If the colony has at least 10 provinces: +1 Merchant +5% Global trade power modifier +5 Land force limit +10 Naval force limit
Independent diplomacy?	Can rival, ally and declare war on primitive and colonial nations. Wars they declare do not call in the overlord or the defender's colonial parent.
Gained via	Only available if Leviathan is not active The conditions to spawn a colonial nation are: The country owns at least five cored overseas provinces in the same colonial region (regardless of whether they are part of a state or territory) The capital is not located within a colonial region The country is not and never was a former colonial nation[2] The country is not and never was a former colonial nation formable[3] The country is not the former tag of a country which formed a former colonial nation formable[4]
Notes	Once formed, colonial nations will take control of any province that would otherwise be owned by their overlord in a given colonial region.

When formed, the colonial nation's flag is generated based on the mother country's flag and the colonial region the new colonial nation is located in. For example, a nation in the Mexico colonial region will have a yellow flag, while one in the Eastern North America colonial region will have a light-blue one. The name can be changed after creation (but unlike client states, nothing else can be customized).

Leviathan colonies[edit | edit source]

Available only with the Leviathan DLC enabled.

If Leviathan is enabled, during a colonial nation's formation its overlord will designate it as one of three colonial designations, which are Crown Colony, Private Enterprise, and Self-Governing Colony. Each designation provides different bonuses for the colonial nation and its overlord. A colonial nation's designation may be further upgraded by its overlord for ducats and administrative power to gain additional bonuses after formation. However, disloyal colonies won't provide manpower, sailors, or tariffs. Colony designation can be changed for 1000.

Subject	Crown Colony	Private Enterprise	Self-governing Colony
Subject Nation penalty
Diplomatic relation slot
Subject tax	Colonial nations transfer 50% of their trade power to the overlord Global tariffs × 50% production income Global tariffs × 50% trade income
Overlord force limit increase	If the colony has at least 10 provinces: +30% of colony land force limit +1% of colony naval force limit +30% of colony maximum manpower +1% of colony maximum sailors	If the colony has at least 10 provinces: +30% of colony naval force limit +30% of colony maximum sailors	If the colony has at least 10 provinces: +0.2% of colony land force limit +0.2% of colony naval force limit +0.2% of colony maximum manpower +0.2% of colony maximum sailors
Liberty desire calculation			Base: +25%
	Adds overlord's mercantilism × 0.25 Adds overlord's administrative efficiency × 0.2 Adds overlord's war exhaustion × 1 Adds overlord's global tariffs × 1 Calculates only own value; for army, navy and economic size comparison Per development:[1] 0.1
Integratable after
Integration cost
Effects on subject	+10 Global settler increase -0.1 Monthly autonomy change	+20% Goods produced modifier +20% Ship trade power +10% Ship tradepower propagation +10% Navy tradition from protecting trade	−15% Development cost +1 Colonist
Effects on overlord	If the colony has at least 10 provinces: +1 Merchant +5% Global trade power	If the colony has at least 10 provinces: +1 Merchant +5% Global trade power −5% Global tariffs	If the colony has at least 10 provinces: +1 Merchant +5% Global trade power −10% Global tariffs
Independent diplomacy?	Can rival, ally and declare war on primitive and colonial nations. Wars they declare do not call in the overlord or the defender's colonial parent.
Gained via	The conditions to spawn a colonial nation are: The country owns at least five cored overseas provinces in the same colonial region (regardless of whether they are part of a state or territory) The capital is not located within a colonial region The country is not and never was a former colonial nation[5] The country is not and never was a former colonial nation formable[6] The country is not the former tag of a country which formed a former colonial nation formable[7] Upon creation, the colony type can be chosen. This type can later be changed at the cost of 1000 ducats.
Notes	Once formed, colonial nations will take control of any province that would otherwise be owned by their overlord in a given colonial region. The colony can be modified with various modifiers via the "Modify subject relationship" subject interaction (see: Colonial nation#Modify colony relationship).
	The overlord additionally has access to the "Support Loyalists", "Subsidize Army" and "Send Officers" interactions		Disallows the "Press Sailors" interaction

Commercial enterprise[edit | edit source]

Available only with the Domination DLC or the Winds of Change DLC enabled.

The commercial enterprise is a unique subject available only to England via the event "The East India Company", which can create the East India Company, aswell as for the Netherlands via the "Create the VOC" decision which can create the Vereenigde Oostindische Compagnie as this type of subject.

Additionally to normal subject interactions, commercial enterprises have most of the colony interactions available. A commercial enterprise may autonomously wage war, unless this privilege is revoked via diplomacy. The commercial enterprise has access to the same list of subject modifications as a self-governing colony.

Subject	Commercial enterprise
Subject Nation penalty
Diplomatic relation slot
Subject tax	Colonial nations transfer 50% of their trade power to the overlord Global tariffs × 50% production income Global tariffs × 50% trade income
Overlord force limit increase	If the subject has at least 10 provinces: +10% of the subject's land force limit +10% of subject's naval force limit +10% of the subject's maximum manpower +10% of the subject's maximum sailors
Liberty desire calculation	Adds overlord's mercantilism × 0.25 Adds overlord's administrative efficiency × 0.2 Adds overlord's war exhaustion × 1 Adds Overlord's global tariffs × 1 Calculates only own value; for army, navy and economic size comparison Per development:[1] 0.05
Integratable after
Integration cost
Effects on subject	+20% Goods produced modifier +20% Ship trade power +10% Ship trade power propagation +10% Navy tradition from protecting trade
Effects on overlord	+1 Merchant +5% Global trade power modifier −5% Global tariffs If the commercial enterprise has at least 10 provinces: +1 Merchant +5% Global trade power modifier +5 Land force limit +10 Naval force limit
Independent diplomacy?	Unless this right is revoked, they may autonomously wage war
Gained via	Only available to England ( East India Company) and the Netherlands ( Vereenigde Oostindische Compagnie) via missions
Notes	The commercial enterprise can be modified with various modifiers via the "modify subject relationship" subject interaction. They have available the same modifications as a self-governing colony (see: Modify colony relationship). The Vereenigde Oostindische Compagnie has some additional modifications available.

Sunset colony[edit | edit source]

Available only with the Winds of Change DLC enabled.

Subject	Sunset colony
Subject Nation penalty
Diplomatic relation slot
Subject tax	Colonial nations transfer 50% of their trade power to the overlord Global tariffs × 50% Production Income Global tariffs × 50% trade income
Overlord force limit increase	If the subject has at least 10 provinces: +10% of the subject's land force limit
Liberty desire calculation	Adds overlord's mercantilism × 0.25 Adds overlord's administrative efficiency × 0.2 Adds overlord's war exhaustion × 1 Adds overlord's global tariffs × 1 Calculates only own value for army, navy and economic size comparison Per development:[1] 0.1
Integratable after
Integration cost
Effects on subject	None
Effects on overlord	If the colony has at least 10 provinces: +1 Merchant +5% Global trade power modifier +5 Land force limit +10 Naval force limit
Independent diplomacy?
Gained via	The "Establish Sunset Colony" diplomatic action, used on overseas vassals
Notes	Unlocked via the "Settling Europe" Sunset invasion Mission Can only have one per region

Trade company[edit | edit source]

Available only with the Wealth of Nations DLC enabled.

Main article: Trade company

A trade company is a collection of overseas provinces in a trade company region that exchanges tax and manpower for trade, maritime and production benefits. They are not actually nations, but they are listed in the subjects tab.

A province in a trade company gets autonomy-reduced tax income, sailors, manpower and land force limit like a territory, but less autonomy impact on production income, +100% provincial trade power, and 0.5 naval force limit. Additionally, goods produced remains unaffected by cultural intolerance, religious intolerance is ignored (but they get −20% local missionary strength), and the province does not contribute to religious unity.

Trade companies may be formed by nations that own at least one province in a territory which is on a different subcontinent from their capital and not in a colonial region. They differ from colonial nations in the Americas and Australia in that they are not separate governments, as all territories remain part of the mother country. Provinces in a trade company must belong to a territory; adding them to a state will automatically remove them from a trade company, which entails the same −200% goods produced modifier which manually removing one does. Provinces can be added or removed from a trade company at any time, except when the 5-year goods produced modifier for removal is present.

Tributary[edit | edit source]

Available only with the Mandate of Heaven DLC enabled.

Tributaries are a loose form of subject relationship. They retain full diplomatic independence and may start wars and have subjects (except other tributaries) of their own.

Subject	Tributary state
Subject Nation penalty
Diplomatic relation slot
Subject tax	The overlord may demand a yearly tribute of either: 12.5% of annual income 25% of annual manpower development / 33 rounded down (max 12) of any of the three monarch power types. The tribute can be refused.
Overlord force limit increase
Liberty desire calculation	Base: −5% Calculates only own value; for army, navy and economic size comparison Per development:[1] 0.175
Integratable after
Integration cost
Effects on subject
Effects on overlord	If the overlord completed the horde mission "Bowed Heads; Bent Knees" completed via subjects: For every tributary that has at least 100 development: +1% Manpower recovery speed +1% National tax modifier
Independent diplomacy?
Gained via	The following nations may establish Tributaries: Has a state religion in the Eastern religion group Has the Chinese technology group Has the Polynesian technology group Is a nomad nation Has the Feudal Tribe government reform Has the Celestial Empire government reform Has the "Grant Power to the Bashorun" Nobility privilege Via: The "Establish Tributary" diplomatic action The "Force Tributary" peace treaty Other nations may gain tributaries by full-annexing another nation which has some.
Notes	The Emperor of China has the Force Tributary CB against all their neighbors. The overlord receives a call to arms if the tributary is attacked (unless if by another tributary of the same overlord), but does not have to accept. If refused, the tributary breaks free. The tribute is paid annually on 2 January. Tribute type demand must be selected before 1 January. If monetary tribute would be below 1 ducat, or monarch points would be below 1 point, they can't be selected.[8] If the tributary pays the tribute, trust increases slightly; if it refuses, trust falls significantly. AI always pays tribute when liberty desire is below 50% and refuses otherwise. Either party may renounce the tributary status at will, unless they have a truce. If the overlord cancels the tributary relation while having at least 30 trust towards their subject, a 5-year two-way truce will be created. If a tributary renounces their status, no truce will be created, but they lose −1 stability. After passing the "Elevate Tributary Status" celestial reform, the Emperor of China may turn their tributaries into vassals. Monarch power tribute can be increased in several ways (1 monarch power tribute each): Monarchy tier 3 reform Representatives of the Crown Path of Expansion mission for Chinese kingdoms Mutual Trade System mission for the Emperor of China for certain tags Hegemon of Asia mission available for Japan Basqaq Autonomy tribes estate privilege gained after completing the Horde "Strengthen the Basqaqs" mission Basqaq Autonomy nobility estate privilege gained after completing the Horde "Strengthen the Basqaqs" mission Primacy of the Nobility nobility estate privilege gained after completing "Tributes to Capital" mission available for Aztec Aztec idea "Imperial Tribute"

The factors that influence an AI nation's desire to accept an Establish Tributary offer are:

Factor	CollapseEffect
Attitude towards proposer	Hostile: −1000
	Outraged: −1000
	Rivalry: −1000
	Neutral: −50
	Threatened: +100
Opinion towards proposer	+1 per 4 positive points (rounded down)
	−1 per 4 negative points (rounded up)
Proposer's diplomatic reputation	+2 per positive point
	−2 per negative point
AI nation's government rank	−20/−100 Kingdom/Empire
AI nation's development[9]	−0.5 per development (rounded up)
Proposer economic base compared to target nation	+90 to −90
Proposer military power compared to target nation	+90 to −90
AI nation has subject of its own	−1000
AI nation is an elector	−1000
AI nation is Emperor of the HRE	−1000
AI nation is Emperor of China	−1000
Are not neighbors	−1000
Distance between borders	−0.5 per distance between borders (defunct but still displayed)
Proposer is Celestial Empire or has horde government with rank Empire[10]	+10

Strategy[edit | edit source]

For a tributary overlord, sending manpower to tributary subjects at war can often be the cheapest way to decrease liberty desire and maintain the more valuable tribute income in the form of monarch power. It can thus be helpful to set large tributary countries as "special interest" (right-click on country flag in provincial interface) and receive notification for wars by these tributaries.

For establishing tributary subjects of AI nation, threatened attitude gives the most significant +100. (Strangely, friendly attitude does not give any modifier.) The attitude goes away at high opinion. Thus the optimal opinion with the threatened attitude is around 0. Players should avoid improving relation for too long in that case.

Liberty desire modifiers from Demand Additional Tribute and Demand Artifacts decay independently, so alternating between them allows liberty desire to drop down more quickly.

Mesoamerican tributary[edit | edit source]

Available only with the Winds of Change DLC enabled.

Subject	Mesoamerican tributary
Subject Nation penalty
Diplomatic relation slot
Subject tax	Their overlord may demand a yearly tribute of either: 12.5% of annual income 25% of annual manpower development / 33 (max of 12) of any of the three monarch power types The tribute can be refused.
Overlord force limit increase	10% of the subject's land force limit
Liberty desire calculation	Calculates only own value for army, navy and economic size comparison Per development:[1] 0.15
Integratable after	10 years
Integration cost	100%
Effects on subject	None
Effects on overlord	If the Aztecs "Divine Rule" mission was completed: Mesoamerican tributaries will now grant +0.01 monthly tonalli
Independent diplomacy?
Gained via	The "Make Mesoamerican Tributary" peace treaty, available to Nahuatl and Mayan nations
Notes

Appanage[edit | edit source]

Subject	Appanage
Subject Nation penalty
Diplomatic relation slot
Subject tax	1 x income from subject × their tax income
Overlord force limit increase	10% of the subject's land force limit
Liberty desire calculation	Base: +35% Calculates only own value; for army, navy and economic size comparison Per development:[1] 0.25
Integratable after	10 years
Integration cost	100%
Effects on subject
Effects on overlord	+2% Nobility loyalty equilibrium
Independent diplomacy?	Can fight, ally and rival other appanages of the same overlord
Gained via	Only the starting subjects of France, as well as possibly Alençon if they are released via the "The Duke of Alencon" event, are appanages. Should another nation fully annex France, that nation will become the new overlord of their appanages.
Notes	Appanages enable a variety of additional subject interactions The overlord has access to the "Appoint Crown Prince" diplomatic action with their appanages.

Eyalet[edit | edit source]

Available only with the Domination DLC enabled.

Eyalets are special subjects available only to the Ottomans and Rûm.

Subject	Eyalet
Subject Nation penalty
Diplomatic relation slot
Subject tax	1.25 × income from subject × their tax income
Overlord force limit increase	10% of the subject's land force limit 10% of the subject's naval force limit 10% of the subject's maximum manpower 10% of the subject's maximum sailors
Liberty desire calculation	Calculates based on all (incorporated) vassals, eyalets, marches, pronoias and soyurghals for army, navy and economic size comparison Per development:[1] 0.1
Integratable after
Integration cost
Effects on subject	−5000 National manpower −5 Land force limit
Effects on overlord	None
Independent diplomacy?	Must be manually called into wars at the cost of 20 favors Eyalets that are called to war act as allies, meaning they can sign a separate peace
Gained via	The Justify Invasion diplomatic option, which enables the "Establish Eyalet" peace option. Vassals can be turned into eyalets via the "Promote to Eyalet" diplomatic action. Core Eyalets can be turned into eyalets via the "Grant autonomy to Eyalet" diplomatic action. The Ottomans also get several events which can turn their conquered territories into eyalets.
Notes	Eyalets are only called into all current wars; if any more wars are declared after calling them in, they won't join that war and also can't be called into it, because they are already at war. Furthermore eyalets can't be forced to break a truce. If they are called into wars, they will only join those where they do not have a truce with the enemy war leader.

Core eyalets[edit | edit source]

To annex an eyalet it must first be diplomatically "reined in", which turns them into a core eyalet. A core eyalet can be diplomatically annexed, but can't at all be called into wars. The 10 year cooldown before the subject can be annexed only starts after turning them into a core eyalet.

Subject	Core eyalet
Subject Nation penalty
Diplomatic relation slot
Subject tax	1.5 × income from subject x their tax income
Overlord force limit increase	20% of the subject's land force limit 20% of the subject's naval force limit 20% of the subject's maximum manpower 20% of the subject's maximum sailors
Liberty desire calculation	Calculates based only on own value for army, navy and economic size comparison Per development:[1] 0.1
Integratable after	10 years
Integration cost	75%
Effects on subject	−5000 National manpower −5 Land force limit
Effects on overlord	None
Independent diplomacy?	Does not join any offensive wars
Gained via	Using the "Rein in Eyalet" diplomatic action on a regular eyalet
Notes

Eyalets whose development is close to or surpasses 200 will be exceedingly difficult to rein in. Being at 200 opinion and 100 trust will only give them 60 reasons to be reined in, while every 4 points of development will give them 1 reason to refuse being reined in. Thus an eyalet with 200 development or above will never accept being reined in if their overlord does not stack diplomatic reputation (which gives 4 reasons to be reined in per point). Furthermore, every point of liberty desire will reduce reining in acceptance by the same value. High development eyalets will thus be even harder to rein in. If one wishes to integrate their eyalets, it is advised to not turn their core eyalets which are granted via missions or events back into eyalets.

Trade protectorate[edit | edit source]

Trade Protectorates are loose subjects similar to tributaries.

Subject	Trade protectorate
Subject Nation penalty
Diplomatic relation slot
Subject tax	1 × income from subject × their tax income Trade protectorates transfer 50% of their trade power to the overlord
Overlord force limit increase
Liberty desire calculation	Base: −10% Calculates only own value; for army, navy and economic size comparison Per development:[1] 0.175
Integratable after
Integration cost
Effects on subject	+20%Production efficiency +25% Institution spread −1 Diplomatic relations If total development is less than 200: −20% Technology cost
Effects on overlord	+5% Global trade power +2% Goods produced modifier
Independent diplomacy?
Gained via	They can only be established via the "Establish Trade Protectorate" diplomatic action on countries with their capital on a different continent. They are only available to nations that have the Thalassocracy, Merchant Committees, Royal Charters, or British Global Trade Policy government reform. The former is available to all nations that complete the "Confirm Thalassocracy" decision, the second one is only availabel to Venice via their missions, and the latter two are only available to England via their missions. Hormuz and Oman can unlock Thalassocracy by completing the "Arabian Thalassocracy" mission
Notes	Trade protectorates can declare wars on other tributaries/trade protectorates of the same overlord without involving them. The overlord can protect them if they are attacked, but may refuse, which does not break the relationship. Both overlord and protectorate may diplomatically end the relationship at any time, at the cost of −1 stability. (−1 prestige with full Diplomatic ideas). This does not create a truce. There is no pop-up if the relationship is broken this way. The trade protectorate may also fight an independence war, but the AI will never do this. They are not automatically called into the wars of their overlord. They can however be called to arms like any ally when declaring a war, including with the promise of land. An AI-controlled trade protectorate always answers such calls if their opinion is at least +100, regardless of favours or claims on provinces, and will never accept otherwise. Calling a trade protectorate to arms will reduce their opinion by −100 which decays at a rate of +5 yearly. They can also be called to wars after the war has been declared or if a war was declared onto their overlord, but only with the "Call trade protectorate to war" action under the Influence Actions group. This action is only possible if the protectorate is not at war and has a positive opinion of their overlord, but will be denied by the AI if the opinion isn't at least +50. They receive an opinion malus of −100 and then join all active wars. The opinion malus is reduced to −50 if they are only called into defensive wars.

The factors that influence an AI nation's desire to accept an Offer Trade Protectorate offer are:

Factor	CollapseEffect
Attitude towards proposer	Hostile: −1000
	Outraged: −1000
	Rivalry: −1000
	Domineering: −1000
	Neutral: −20
	Threatened: +10
	Friendly: +10
Trust	Scales linearly between the following points:
	+20 at 100 trust
	0 at 50 trust
	−20 at 0 trust
Opinion towards proposer	+1 per 8 positive points (rounded down)
	-1 per 8 negative points (rounded up)
Proposer's diplomatic reputation	+3 per positive point
	−3 per negative point
AI nation's development[9]	-0.25 per development (rounded up)
AI nation has subject of its own	−1000
Distance between borders	−0.5 per distance between borders

Hereditary pronoia[edit | edit source]

Available only with the King of Kings DLC enabled.

Pronoias are special subjects available only to Byzantium, the Roman Empire and custom nations.

Subject	Pronoia
Subject Nation penalty
Diplomatic relation slot
Subject tax	0.1 × income from subject × their tax income
Overlord force limit increase	+10% of the subject's land force limit +10% of subject's naval force limit +20% of subject's maximum manpower +20% of subject's maximum sailors
Liberty desire calculation	If it is a hereditary pronoia: Base: +25% If it is a non-hereditary pronoia: Base: +50% Calculates based on all (incorporated) vassals, eyalets, marches, pronoias and soyurghals for army, navy and economic size comparison Per development:[1] 0.25
Integratable after
Integration cost	If it is a non-hereditary pronoia: The pronoia is automatically inherited after its current rulers dies, if liberty desire is below 50%
Effects on subject	+50% Development cost +100% Core creation cost +100% Overextension impact modifier −20% Administrative efficiency +5000 Manpower +50% National manpower modifier −50% Regiment cost If the overlord has completed the "Pronoia Rights" mission: +5 land force limit, if the overlord chose the "Let them handle themselves." option If the overlord has completed the "Control over the Pronoiars" mission: +3 yearly army tradition, if the overlord chose the "Give them to skilled generals." option +5% discipline, if the overlord chose the "Provide them to professional soldiers." option
Effects on overlord	−5 Land force limit This malus is removed if the overlord has completed the "Pronoia Rights" mission and chose the "Integrate the Pronoiar armies into our forces." option If the overlord has completed the "Realms of the Strategoi" mission: If the pronoia has at least 20 units: +0.2 Yearly army tradition
Independent diplomacy?
Gained via	Using the "Land Pronoiar" diplomatic action on a regular vassal that is a monarchy, has less than 100 development and has less than 15% liberty desire The reforms that enable pronoias are: Pronoiar Monarchy, Byzantine Autocracy, Reformed Byzantine Monarchy, Roman Empire and Roman Republic. A nation has a maximum limit of how many pronoias it can have. At base this is 1, plus 1 for every 100 land force limit (i.e. increases at LFL of 101, 201, ....)
Notes	Landing a pronoiar kills the current ruler and heir of the subject and replaces them with a ruler whose administrative skill is increased by +1 and whose military skill is increased by +4.

The following can further increase a nation's maximum number of pronoias:

• +2 from the "Pronoia Rights" mission
• +2 additionally from the "Pronoia Rights" mission, if the option "We must get ready to grant out more territories." was chosen
• +3 from the Pronoiar Monarchy government reform (for custom nations only)
• +2 from the Reform the Pronoia System government reform
• +1 from the 2nd Administrative idea "Local Rule"
• +1 from the 7th Espionage idea "Blackmailing"
• +1 from the 4th Aristocratic idea "Noble Officers"
• +1 from the 4th Offensive idea "Glorious Arms"
• +1 from the 1st Quantity idea "Levee en masse"
• +1 from full Quantity ideas

Non-hereditary pronoia[edit | edit source]

• A hereditary pronoia can be turned into a non-hereditary pronoia via the "Revoke rights of inheritance" diplomatic action, which requires less than 15% liberty desire.
• If the overlord has completed the "Control over the Pronoiars" mission and chose the "End their hereditary freedoms." option, pronoias will be non-hereditary from the beginning.
• If the overlord has completed the "Control over the Pronoiars" mission and chose the "Focus on the inheritance laws." option, integrating a pronoia will increase the overlord's crownland by +1%, unless the overlord already gained crownland in this way within the last 5 years.
• Note that the liberty desire requirement for inheritance is counted after the ruler dies, so if for example the death of the pronoia's ruler breaks a royal marriage, and that puts their liberty desire above 50%, they won't be annexed.

Cultural influenced state[edit | edit source]

Available only with the King of Kings DLC enabled.

Cultural influenced states are a subject type similar to tributaries, uniquely available to Persia with the King of Kings DLC. Their opinion of the overlord and the overlords opinion of them, is increased by +15.

Subject	Cultural influenced state
Subject Nation penalty
Diplomatic relation slot
Subject tax	0.25 × income from subject × their tax income
Overlord force limit increase
Liberty desire calculation	Base: −10% Adds overlord's prestige below 0 × 2 Calculates only own value; for army, navy and economic size comparison Per development:[1] 0.1
Integratable after
Integration cost
Effects on subject	+10 Opinion of same religion +10 Opinion of country from others of same religion
Effects on overlord	-0.20 Monthly Persian influence, per cultural influenced state that does not share the overlord's primary culture +20 cost to elevate cultural influenced state to vassal, per cultural influenced state
Independent diplomacy?
Gained via	Cultural influenced states are subjects available with the "Court of Art and Culture" government reform. Cultural influenced states are gained via the "Invite into sphere of influence" diplomatic action. This action can only be used on nations that: Have the same religion as the proposer Are within the trade range of the proposer Are not a great power Have less development than the proposer Are at peace As an additional condition, the proposer must be at peace.
Notes	Their overlord will protect them (like a tributary state) should they be attacked. Cultural influenced states can choose to become fully independent at any time, at the cost of −1 stability. Cultural influenced states will also become independent should their religion no longer be the same as their overlord. Overlords can turn their cultural influenced states into regular vassals via the "Elevate influenced State" diplomatic action. This can only be done if the cultural influenced state has the same primary culture as their overlord and if the subject has less than 50% liberty desire.

AI willingness to become a cultural influenced state is dependent on the following :

Factor	Value
Proposers Diplomatic reputation	x 3
Trust of Proposer above 50	x 0.4
Opinion of Proposer	x 0.125
Nations total development	x 0.25
Nations has subjects of its own	−20
Border distance	x 0.25
Attitude towards proposer	Friendly: +20
	Threatened: +20
	Neutral: −10
	Domineering: −1000
	Hostile: −1000
	Outraged: −1000
	Rivalry: −1000

Additionally the "Unify the Shia Realms" mission gives all Shia allies which own provinces in Arabia or Africa a flat +25 reasons to accept.

Alternatively, nations can use the "Join Sphere of Influence" diplomatic action to become another nation's cultural influenced state.

Overlords can turn their cultural influenced states into regular vassals via the "Elevate influenced State" diplomatic action. This can only be done if the cultural influenced state has the same primary culture as their overlord (the "Court of Art and Culture" government reform also enables nations to ask other nations to take on their primary culture) and if the subject has less than 50% liberty desire.

AI willingness to become elevated is dependent on the following:

Factor	Value
Proposers Diplomatic reputation	x 4
Trust of Overlord above 50	x 0.4
Opinion of Overlord	x 0.2
Subjects total development	x 0.25
Subjects liberty desire	x 1

Additionally the Ottoman mission "End the Eyalet Rebellion" gives all nations a flat +20 reasons to accept. (this is likely because the factors from this diplomatic action were copied from the "Reign in Eyalet" action)

Elevating a cultural influenced state costs 20 × the amount of cultural influenced state subjects in "Persian influence". This cost can be reduced by a maximum of 100, by using the "Persian Influence" interactions of the "Court of Art and Culture" government reform.

If the mission "Expand our Influence" was completed, the cost of elevating can be reduced by up to 200. Additionally, elevating a subject will establish a historical friendship between them and their overlord.

Mongol brother realm[edit | edit source]

Available only with the Winds of Change DLC enabled.

Subject	Mongol brother realm
Subject Nation penalty
Diplomatic relation slot
Subject tax	1.5 x income from subject × their tax income
Overlord force limit increase	+50% of the subject's land force limit
Liberty desire calculation	Base: −25% Calculates only own value; for army, navy and economic size comparison Per development:[1] 0.01
Integratable after	50 years
Integration cost	100%
Effects on subject	−15% Land force limit modifier −20% National manpower modifier
Effects on overlord	+10% Cavalry combat ability
Independent diplomacy?	May wage wars
Gained via	The following Mongol brother realms may be established by hordes via their missions: Yuan Golden Horde Ilkhanate
Notes	Winds of Change has added three different sets of missions for the Hordes: Tatars, Central Asians and Mongols. All three sets allow the releasing of the Ilkhanate. The Tatar missions additonally allow the releasing of Yuan. The Mongol missions additonally allow the releasing of the Golden Horde. The Central Asian missions may release all three nations.

Soyurghal[edit | edit source]

Available only with the Winds of Change DLC enabled.

Subject	Soyurghal
Subject Nation penalty
Diplomatic relation slot
Subject tax
Overlord force limit increase	+20% of the subject's land force limit +20% of the subject's naval force limit +20% of the subject's maximum manpower +25% of the subject's maximum sailors
Liberty desire calculation	Calculates based on all (incorporated) vassals, eyalets, marches, pronoias and soyurghals for army, navy and economic size comparison Per development:[1] 0.25
Integratable after	10 years
Integration cost	200%
Effects on subject	+50% development cost +5000 Maximum manpower increase +25% National manpower modifier −25% Regiment cost
Effects on overlord	+1 Land force limit +5% Land force limit modifier
Independent diplomacy?
Gained via	Using the "Grant a Soyurghal" diplomatic action on a regular vassal
Notes	Only available to the Timurids via the "Reform the Soyurghals" mission on the "Persia" branch The maximum amount of soyurghals the country is allowed to have is equal to 50% of its diplomatic reputation. The maximum number of soyurghals can be increased by +2 by completing the "Restore Silk Road" mission on the "Persian" branch and choosing the "Use it to benefit our diplomacy." option in the "The Silk Road" event.

Liberty desire[edit | edit source]

Please help with verifying or updating this section. It was last verified for version 1.25.

All subject nations have a liberty desire between 0 and 100, indicating their wish for independence.

• Below 50 a subject state is loyal: it pays taxes/tariffs to its overlord and takes an active part in all wars.
• Above 50 liberty desire, a subject becomes disloyal, refusing to pay taxes while being unhelpful in wars by only defending its own territory. Disloyal subjects readily accept support for their independence from foreign nations and make alliances with each other, and may declare an independence war if they have sufficient strength. In rare cases, a disloyal subject may still have a Friendly attitude toward its overlord; this means it will not accept requests to support its independence or alliances from fellow subjects, but does not otherwise alter its behavior.
• At 100 liberty desire, a state is rebellious, and will, at least in theory, declare its independence at the slightest opportunity.

Relative modifiers[edit | edit source]

Liberty desire from army is calculated as follows:

• The relative army size of the subject compared to its overlord. There is +75 liberty desire for having 100% of the overlord's forces, scaling proportionately (e.g. +37.5 at 50%).
  • The combined strength of all (incorporated) vassals, eyalets, marches, pronoias and soyurghals is used for their liberty desire.
  • Daimyos, all three personal union types, all five colonial nations, commercial enterprises, both tributaries, trade protectorates, cultural influenced states, appanages, core eyalets and Mongol brother realms only consider their individual strengths.
  • Additionally, nations allied with or supporting the liberty of a subject nation will have their army strength added to that specific subject. Other subjects will not have their army strength increased, unless their independence is also supported.

Liberty desire from economy is calculated as follows:

• The relative economic size of the subject compared to its overlord. There is +75 liberty desire for having 100% of the overlord's forces, scaling proportionately (e.g. +37.5 at 50%).
  • The combined strength of all (incorporated) vassals, eyalets, marches, pronoias and soyurghals is used for their liberty desire.
  • Daimyos, all three personal union typies, all five colonial nations, commercial enterprises, both tributaries, trade protectorates, cultural influenced states, appanages, core eyalets and Mongol brother realms only consider their individual strengths.
  • Additionally, nations allied with or supporting the liberty of a subject nation will have their economic strength added to that specific subject. Other subjects will not have their economic strength increased, unless their independence is also supported.

Liberty desire from navy is calculated as follows:

• The relative navy size of the subject compared to its overlord. There is +75 liberty desire for having 100% of the overlord's forces, scaling proportionately (e.g. +37.5 at 50%).
  • Only subjects that are considered "overseas" gain liberty desire from navy strength.
  • The combined strength of all (incorporated) vassals, eyalets, marches, pronoias and soyurghals is used for their liberty desire.
  • Daimyos, all three personal union typies, all five colonial nations, commercial enterprises, both tributaries, trade protectorates, cultural influenced states, appanages, core eyalets and Mongol brother realms only consider their individual strengths.
  • Additionally, nations allied with or supporting the liberty of a subject nation will have their navy strength added to that specific subject. Other subjects will not have their navy strength increased, unless their independence is also supported.

Generic modifiers[edit | edit source]

Generic modifiers to liberty desire are:

• −50 for historical friends
• −50 if recently defeated in an independence war (decreasing over time)
• −20 for being Naval hegemon with max power
• −10 for each use of the “Placate Local Rulers” subject interaction (the effect is capped at −100 and it decreases over time by 1 per year)
• −5 for a royal marriage
• −5 for each loan of the subject which was paid back with the “Pay Off Debt” subject interaction (the sum is capped at −100 and it decreases over time by 1 per year)
• −5 per each development point improved in subject's province (the sum is capped at −100 and it decreases over time by 1 per year)
• −5/−10% for holding Alhambra (only with )
• −5/−10% for holding Imperial City of Kyoto (only with )
• −3 per point of diplomatic reputation
• −0.5 per province development granted in a peace deal or with the “Grant province” subject interaction (the sum is capped at −100 and it decreases over time by 0.1 per month)
• ±0.4 per point of trust below/above 50 (min −20 at 100 trust, max +20 at 0 trust)
• −0.1 for each point of positive relations (max −20)
• +0.2 for each point of negative relations (max +40)
• +0.3 per 1% of the subjects development that has the revolution (this does not apply to client subjects)^[11]
• +5 for each level the overlord's diplomatic technology is behind the subject's
• +10 subject nation is a Steppe nomads
• +50 for historical rivals

Certain ideas affect liberty desire in subjects:

	Traditions	Ideas	Bonuses	CollapsePolicies
−20%	Ligori traditions	—	—	—
−15%	—	Influence idea 2: Additional Loyalist Recruitment	—	Court-Expansion: Subject Obligations Act Influence-Expansion: Overseas Dominions
−10%	Oyo traditions	Ajami idea 7: Shahanshah Aztec idea 5: Imperial Tribute Berg idea 3: The United Duchies Bruneian idea 4: Hegemon of Borneo Jolof idea 3: The Tribute of the Five Kingdoms Majapahit idea 1: Nusantara Tributaries Malaccan idea 1: Vassal Princes Qara Qoyunlu idea 5: Freedom with Responsibility Tyrone idea 1: Chief of Irish Kings	—	Divine-Influence: One and True Plutocratic-Influence: Unified Army Command

Type-dependent modifiers[edit | edit source]

• A base modifier depending on type of subject:
  • −25 for client states and Mongol brother realms
  • −15 for marches
  • −10 for trade protectorates and cultural influenced states
  • −5 for tributary states
  • +10 for Japanese daimyo
  • +25 for pronoias and self-governing colonies
  • +35 for appanages
  • +50 for non-heredetary Pronoia
• −5 for having the same ruling dynasty. (vassal and all copies, eyalet and core eyalet)
• +0.25 for colonies, per point of the overlords's mercantilism
• +0.2 for colonies, per point of the colonial nation's administrative efficiency
• +1 for colonies, per point of the overlord's war exhaustion
• +1 for colonies, per point of tariff rate
• +1 for junior partners of a personal union, per prestige below 0 (up to +100 liberty desire at -100 prestige)
• +2 for cultural influenced states, per each prestige below 0 (up to +200 liberty desire at -100 prestige)

Liberty desire from subjects development[edit | edit source]

Some subject types get liberty desire from their development:

Liberty desire per point of development	Subject type
+0.25	all vassals, client states, marches, appanages, (hereditary) pronoiars and soyurghals
+0.175	Tributaries and trade protectorates
+0.15	Mesoamerican tributaries
+0.1	all 5 colonial nations(including Sunset Colony), (core) eyalets, cultural influenced states
+0.05	Commercial enterprises
+0.01	Mongol brother realm
0.0	(Incorporated) Personal union

This is modified by:

• −33% “Austrian Archduchy” government reform
• −33% “Elevate Tributary Relations” celestial reform for the Emperor of China
• −33% completing the mission Dominate North America (available to Scandinavia if formed by Norway)
• −33% the age of revolutions ability “Anti-Revolutionary Zeal”
• −25% completing the khmer mission Subjugate Ayutthaya
• −20% completing the danish mission [Root.GetAdjective] Absolutism
• −15% completing the Neapolitan mission Crown of Aragon
• +25% between 20% and 29% crownland
• +50% between 10% and 19% crownland
• +100% between 1% and 9% crownland
• +150% below 1% crownland

Certain ideas affect liberty desire from subjects development:

	Traditions	Ideas	Bonuses	CollapsePolicies
−25%	Tongan traditions	Vermont idea 6: Live Free or Die	—	Naval-Expansion: Supply Convoys
−20%	Ayutthayan traditions	Ligori idea 3: Vassal Cities Three Leagues idea 7: Expanding the Leagues	—	—
−15%	—	—	—	Exploration-Religious: Colonial Restrictions Indigenous-Influence: Loyalty to the Land
−10%	—	Influence idea 6: Postal Service	—	—

Liberty desire from subjects development does not have a limit. It is possible to get it below −100%, in which case subject development will reduce their liberty desire instead of increase it.

Subject interactions [edit | edit source]

Please help with verifying or updating this section. It was last verified for version 1.36.

The subject interactions can be accessed by clicking on a subject nations in the subjects tab in country interface. Most subject interactions are limited to some subject types^[12].

• Daimyos technically count as vassals but for the sake of this table they are noted seperately. Their unique interactions also require Mandate of Heaven DLC.
• Liberty Desire modifiers from most sources, such as events and province defections, decay at ±0.1% per month. Toggled liberty desire modifiers (embargo rivals, support royalists, subsidize armies, divert trade, send officers) last until cancelled. Liberty desire from tariffs is permanent.

	Interaction	Subjects														Requirements	Effect	Notes
			Daimyo
	Bestow Gifts																−15% Liberty desire Overlord pays the subject 6 months of subject's income
	Block/Allow Settlement Growth															Golden Century DLC Subject is not a private enterprise colony Subject is not a self-governing colony	Subject cannot use a colonist to promote settlement growth. Using Allow Settlement Growth allows it again.	Colonist which are already promoting settlement growth automatically stop one day after settlement growth is blocked. Doesn't prevent the colonization of uncolonized provinces.
	Change Isolationism															Subject and overlord are both Shinto Liberty desire less than 50%	+25% Liberty desire Subject's isolation level changes by one level towards the overlord's
	Conscript General															Liberty desire less than 50%	+30% Liberty desire Subject sends the overlord their best general.
	Contribute to Capital															Liberty desire less than 50% Subject owns a province with at least 3 base tax, base production or base manpower Subject's total development is at least 33% of the overlord's	Subject's province with the highest development loses 2 development of its best category (biased towards tax and then production). The overlord's capital gains 1 of the same type.
	Customize Subject															Subject is a client state or colonial nation	Change the subject's name and/or (for client states) its map colour and coat of arms.
	Decrease Tariffs															Does not require any DLC	−25 Administrative power −1% Liberty desire −5% Tariffs
	Increase Tariffs															Does not require any DLC	−25 Administrative power +1% Liberty desire +5% Tariffs
	Demand Additional Tribute															Liberty desire less than 50%	+25% Liberty desire Subject pays 3 months of subject's income to the overlord
	Demand Artifacts															Liberty desire less than 50% Subject has positive prestige	+25% Liberty desire +5 Prestige for overlord −5 Prestige for the subject
	Divert Trade																+30% Liberty desire Overlord gets 100% of subject's trade power	Will also result in +20 opinion of the subject towards the overlord.
	Embargo Rivals															Has at least one rival	+5% Liberty desire Subject embargoes overlord's rivals
	Enable Scutage																+50% Vassal income Subject will no longer be called to wars +25% Liberty desire when disabled	Disabling it during a war will not call the subject to arms Disabling multiple times will stack the liberty desire increase
	Enforce Culture															Liberty desire less than 50% Subject has different culture	+25% Liberty desire Costs 2 per subject's development Changes the subject's primary culture to that of the overlord
	Enforce Religion															Subject has different religion Liberty desire less than 50% Subject has positive relations with overlord	+50% Liberty desire if subject's religion in the same religion group +100% Liberty desire if subject's religion in different religion group Changes the subject's religion to that of the overlord	Decays by 1% per year (around 0.1% each month)
	Force Seppuku															Subject has declared war while its current ruler was in power Liberty desire less than 50%	+15% Liberty desire The subject's ruler dies The overlord gains monarch power equal to 5 times the ruler's skills.
	Fortify Subject																Fort is built, paid for by the overlord
	Grant Core/Claim															The Cossacks DLC Core/claim has a land connection with subject or is within one sea zone of subject	Core/claim is granted to the subject	A permanent claim granted will still be permanent.
	Grant Province															The Cossacks DLC Province has a land connection with subject, or is within one sea zone of subject, or is subject's core	−0.5 Liberty desire per province development Province is granted to the subject Cores of overlord go along with the grant
	Knowledge Sharing															Rule Britannia DLC Has embraced at least one institution that the subject has not embraced	Costs ducats equal to 10% of subject's income per month (not paid to anyone, unlike the diplomatic action) Subject's provinces gain +1 per month towards the earliest non-present institution embraced by the overlord
	Pay Off Debt															Subject has loans	Costs ducats equal to total value of subject's current debt Subject cancels all loans −5% Liberty desire per loan paid	Cannot pay off only some loans; must be all
	Placate Local Rulers															Has positive prestige	Costs −20 Prestige −10% Liberty desire
	Place Relative on Throne															Overlord and subject are both monarchies Overlord and subject are in the same religious group Subject doesn't already have the same dynasty	+25% Liberty desire, or +10% if subject is in a regency Places overlord's dynasty on subject's throne
	Press Sailors															Mare Nostrum DLC Subject is not a self-governing colony	+15% Liberty desire Overlord takes sailors from subject up to 20% of their maximum.
	Replace Governor															Subject is not a private enterprise colony Subject is not a self-governing colony Liberty desire less than 50%	+10% Liberty desire Overlord chooses a new governor	Choice between 4/2/2, 2/4/2 or 2/2/4. Does not affect the colony's republican tradition.
	Return Land															Subject owns land that is a core of an independent country	Subject returns a chosen foreign core to its rightful owner Subject gains +5% liberty desire per development of the province
	Sacrifice Heir															El Dorado DLC Is unreformed Nahuatl Subject has an adult heir Has not sacrificed a ruler or heir in the last 3 years	Subject's heir dies Reduce doom by an amount equal to the heir's total skills −75 opinion +20% liberty desire with all vassals
	Sacrifice Ruler															El Dorado DLC Is unreformed Nahuatl Subject is not in a regency Has not sacrificed a ruler or heir in the last 3 years	Subject's ruler dies Reduce doom by an amount equal to the ruler's total skills −100 opinion +25% liberty desire with all vassals
	Seize Land															Subject has positive opinion of overlord Liberty desire less than 50%	+5 Liberty desire per province development Overlord seizes province	Cannot seize capital
	Send Additional Troops															Subject is at war	−10% Liberty desire Send manpower to the subject equal to 2 years of subject's manpower recovery
	Send Officers															Subject is not a private enterprise colony Subject is not a self-governing colony	−10% Liberty desire Overlord pays 33% of subject's army maintenance March gets +20% morale of armies and +5% discipline
	Siphon Income															Subject has positive opinion of overlord	+10% Liberty desire −100 relations with subject Gain 50% of subject's yearly income (as an instant lump sum)
	Start War in Colony															Subject is at peace Subject has a casus belli against the target and no truce with target	Subject starts a war with natives or another colonial nation Overlord is not called in	This only works against colonial nations and primitive countries. It can't be used against countries which reformed their religion/government.
	Subsidize Armies															Subject is not a private enterprise colony Subject is not a self-governing colony	10% of the overlord's manpower gain is sent to the subject +50 relations with subject
	Support Loyalists															Subject is not a private enterprise colony Subject is not a self-governing colony	Costs 10% of the subject's income −20% Liberty desire
	Modify Subject Relationship																See "Colonial nation#Modify colony relationship" for a list of available modifications. The Commercial Enterprise has access to the same list as the Self governing Colony.
	Change Colonial Type															Requires Golden Century	At the cost of 1000 Ducats, the colony is changed to one of the other types. Can only be done once every 20 years.
	Grant Administrative Autonomy																Costs 20 reform progress −10% Liberty desire
	Request extra Levies															Liberty desire is less than 25%	+25% Liberty desire Overlord gains 12 months worth of the subjects manpower
	Seize Court Ressources															Liberty desire is less than 25%	+25% Liberty desire Overlord gains 12 months worth of the subjects monarchs skills in monarch power

Trade companies have no subject interactions per se, but they do have one toggle button in the subjects tab:

• Promote Investments: +50% Trade power in all provinces owned by the trade company, +0.03% yearly inflation

Enhance provinces of subject nations[edit | edit source]

It is possible for the overlord to construct buildings in the provinces of subjects, and to develop them. Each time the overlord develops a subject's province, their liberty desire is reduced by 5%, decaying by +0.1% per month. However, since this increases the subject's development, it also increases base liberty desire by +0.25 for those subject types that have development-based liberty desire (i.e. not personal unions), and can increase their liberty desire based on relative power.

Diplomatic Annexation[edit | edit source]

Please help with verifying or updating this section. It was last verified for version 1.23.

Most Subjects can be diplomatically annexed/integrated by their overlord through the Annex vassal / Integrate diplomatic option. Annexation occupies a diplomat until complete, and results in direct control of the former subject's territory and military.

The requirements for initiating diplomatic annexation are:

1. The subject has been a subject for a certain amount of time, depending on type (usually 10 or 50 years).
2. Subjects opinion of overlord is at least 190.
3. Liberty desire is less than 50%.
4. Subject is at peace.
5. Subject has control of its capital.
6. Subject has at least one core province that can be cored.

Personal unions have one additional conditions to be integrateable:

1. Senior partner has more provinces than junior partner.

Uniquely, the time after which they can be integrated, can be reduced by the "Years for Personal Union Integration" modifier:

	Traditions	Ideas	Bonuses	CollapsePolicies
−10	—	Angevin idea 4: The Many Thrones of the Plantagenet	—	Infrastructure-Diplomatic: Smooth Integration Act

Further modifiers:

Type
Tier 1 Reform "Unified Kalmar Monarchy" for Denmark	−40
permanent modifier “Hegemons of Western Europe” from the Hegemon of Europe mission which is available for Austria	−10
permanent modifier “Universal Monarchy” from the Universal Monarchy mission which is available for Spain	−10
holding Schönbrunn Palace	−5
Tier 1 Reform "Burgundian State" for Burgundy	−5

Annexation progress of subjects appears in the diplomacy interface as a horizontal progress bar next to the vassalage icon . If the annexation process is cancelled before completion, all progress is lost, including the invested diplomatic power.

Diplomatic annexation will be paused if:

• the Subject's liberty desire is greater than 50%;
• the Subject does not have control of its capital; or
• the Subject is at war and any of its provinces are occupied by rebels or an enemy nation.

For Personal Unions only:

• Integration will be immediately cancelled at the end of the month, if both countries are no longer members of the same religious group. This can be avoided by force-converting the Junior partner or changing the Senior partner's religion through rebels.

Cost[edit | edit source]

The full formula for diplomatic annexation cost is:

${\displaystyle {\text{dip point cost}}={\text{floor}}\left(\sum _{\text{per province}}\left[8\cdot {\text{development}}\cdot (1-{\text{administrative efficiency}})\cdot \left(1+\sum {\text{annexation cost modifiers}}\right)\cdot \left(1+\sum {\text{all power costs modifiers}}\right)\cdot \left(1+\sum {\text{local coring cost modifiers}}\right)\right]\right)}$

Development of provinces the overlord already has cores on is not included. The cost reduction from administrative efficiency is capped at 90% and the final cost per province can not go below 0.1 dip points per development(or 1.25% of the normal cost). The final cost for the whole country is rounded, so it can be 0 in extreme cases.

The base annexation cost is 8 diplomatic power per stated development of the Subject and 4 diplomatic power per development in territories and trade company provinces. Provinces on which the overlord has cores don't cost anything to integrate. Having claims or permanent claims on some provinces of the vassal does not change the integration cost. This cost is decreased by administrative efficiency, all power cost modifiers and diplomatic annexation cost modifiers. These modifiers are displayed below:

	Traditions	Ideas	Bonuses	CollapsePolicies
+5%	Deccani traditions Egyptian traditions	Bharathi idea 6: Brahmin Administration Great Qing idea 5: Chinese Laws Great Yuan idea 6: Sino-Mongol Administration Imperial German idea 6: Reichstag Roman idea 6: Imperial Bureaucracy Scandinavian idea 2: Unified Scandinavia	Holy Roman ambition	—

	Traditions	Ideas	Bonuses	CollapsePolicies
−25%	—	Influence idea 3: Integrated Elites	—	—
−15%	—	Austrian idea 1: Imperial Ambition British idea 1: The Acts of Union Chagatai idea 3: Sons of Chagatai Khan Cilli idea 1: Dynastic Marriages Clevian idea 5: United Duchies Gelre idea 7: Land Negotiations LPC idea 4: Reciprocal Guarantee of Two Nations Manx idea 7: The Act of Revestment Siamese idea 5: Consolidation of the State Zambezi idea 6: Wealth of the Shire Valley	Ayutthayan ambition Ligori ambition Majapahit ambition Naxian ambition	Influence-Administrative: Vassal Integration Act
−10%	—	Danish idea 1: The Kalmar Union	—	Influence-Quality: The Integrated Administration Act

Further modifiers:

Type
permanent modifier “Universal Monarchy” from the Spain mission Fecho del Imperio	−25%
permanent modifier “King of Kings” from the Provence mission King of Kings	−20%
with parliament and “Harmonization of State Laws” or “Create Offices for Vassal Nobles” as active issue	−15%
permanent modifier “Bohemian Commonwealth” from the Bohemia mission Bohemian Commonwealth	−15%
Loyal Subjects event for 5 years	-15%
permanent modifier “Lord of Austria” from the Hungary mission The Duchy of Austria (available with Emperor regardless of whether Winds of Change is installed)	−10%
permanent modifier “Unity of Italy” from the Union with Naples mission which is available for Savoy and Sardinia-Piedmont	−10%
permanent modifier “Master of India” from the Masters of India mission which is available for England and Great Britain	−10%
permanent modifier “Austriae Est Imperare Orbi Universo” from the A.E.I.O.U. mission which is available for Austria	−10%
Curia Controller bonus	−10%
Papal Legate modifier for 20 years†	−10%
owning Vienna after finishing the mission Gothic Invasion which is available for Theodoro	−10%
with noble privilege Nobility Integration Policy	−5%
with rajput privilege Rajput Integration Policy only available if there's no nobility estate	−5%
with marathas privilege Marathas Integration Policy only available if there's no nobility or rajput estate	−5%
permanent modifier Bill of rights from the English Parliament reform "Bill of Rights"	−5%
burghers state modifier "Customs Union" which requires from the mission Zollverein which is available for Germany	−5%
holding Alhambra after finishing the Arabia mission Across The Strait	−5%
Disloyal Subjects event for 5 years	+15%

† A nation which is Curia Controller does not have access to the Papal Legate Curia interaction. However, if a nation with the Papal Legate modifier becomes Curia Controller, they do not lose the modifier and so benefit from both while they are active respectively.

Speed of annexation[edit | edit source]

The overlord invests diplomatic power into the annexation process each month at the following rate:

• +2 base rate
• +1 if same religion
• +1 if in same culture group
• ±1 per positive/negative point of diplomatic reputation.

If the total balance of diplomatic power is 0 or negative (hence the balance cannot cover the monthly rate), annexation will pause, but not reverse

Note that if integrating multiple subjects concurrently, this monthly rate as above will apply to each subject independently (modified for the culture and religion of each), even if it results in a monthly diplomatic power deficit. As long as there is still a positive diplomatic power balance to cover the monthly deficits, progress will continue. Should stockpiled Diplomatic power become zero or less, all integration will pause and only resume when the stockpile is positive again.

Effects[edit | edit source]

Annexation is completed once the required diplomatic monarch points are spent, and results in the following effects:

• Control of all the subjects provinces, army, and navy. This may put the overlord over its force limit.
• Fully Cores on all the subjects core provinces.
• Control of the subjects former subjects
• +5 prestige.
• An event gives the "Annexed Subjects" national modifier for 10 years giving  −3 diplomatic reputation. (While the penalty does not stack, the duration of the penalty does so annexing 3 vassals will result in a 30 years penalty). You can avoid getting this penalty via the following:
  • Nobility integration
  • maratha
  • Rajput
  • Reform the league (maya mission), only for mesoamerican tributaries
• −30 relations with other subjects. Does not apply to marches. Will vanish completely after 20 years if no new stacks are added, regardless of current amount. (Stacks. -200 limit).
• −25 relations with other HRE members, if the subject was in the Holy Roman Empire. (Stacks).
• 60% local autonomy in all new cores (or their previous autonomy level, if above), and 0 if the overlord already had a core.

The relation malus with other vassals is affected by Annexation relations impact.

Type
Tier 1 Reform "British Monarchy" for Great Britain	−25%
Tier 1 Reform "Maya Confederation" for Maya	−50%
"Spread Dynastic Influence" Nobility Privilege, unlocked by Maya mission	−25%

Military focus[edit | edit source]

Please help with verifying or updating this section. It was last verified for version 1.30.

A nation can set its subject's military focus to any of the following, which will determine how they behave in wars. If the subject has more than 50% liberty desire, they will always behave as though set to passive.

Focus	Behaviour
No focus	The subject will decide its own strategies.
Supportive	The subject will seek to attach to friendly armies.
Aggressive	The subject will be aggressive towards enemies, seeking battles in enemy territory.

Focus	Behaviour
Passive	This will make the subject stay with armies in their own territory, and defend there. Unless escaping a larger threat.
Defensive	This will make the subject defend its allies' territory. (Recommended for stronger subjects)
Siege	This will make the subject use its armies to siege down hostile fortresses and not seek any battles.

Footnotes[edit | edit source]