http://en.wikipedia.org/wiki/Bogomilism#War_with_Hungary

In 1203, Pope Innocent III, with the aid of the King of Hungary, forced an agreement of Kulin to acknowledge Papal authority and religion: in practice this was ignored. On the death of Kulin in 1216 a mission was sent to convert Bosnia to Rome but failed. In 1234, the Catholic Bishop of Bosnia was removed by Pope Gregory IX for allowing heretical practices.[14] In addition, Gregory called on the Hungarian king to crusade against the Bogomils.[15] However, Bosnian nobles were able to expel the Hungarians.[16] It was not until Pope Nicholas' Bull "Prae cunctis" in 1291 that the Franciscans-led inquisition was imposed on Bosnia.[17] Bogomilism was eradicated in Bulgaria and Byzantium in the 13th century, but survived in Bosnia and Herzegovina until the Ottoman Empire gained control of the region in 1463. Both Catholics and Orthodox persecuted the Bogomils as heretics. The early pressures by its Catholic and Orthodox neighbours drew Bosnia to Bogomilism. Later, with the introduction of Ottoman rule, Bosnians were often more susceptible for conversion to Islam since they were not friends of either the Roman Catholic or Serb Orthodox churches.[citation needed]

From Bosnia, their influence extended into Italy (Piedmont). The Hungarians undertook many crusades against the heretics in Bosnia, but towards the close of the 15th century, the conquest of that country by the Turks put an end to their persecution. Few or no remnants of Bogomilism have survived in Bosnia. The Ritual in Slavonic written by the Bosnian Radoslav, and published in vol. xv. of the Starine of the South Slavonic Academy at Agram, shows great resemblance to the Cathar ritual published by Cunitz, 1853.[18][19]

In the 18th century, the Paulician people from around Nicopolis were persecuted by the Turks, presumably on religious grounds[citation needed], and a good part of them fled across the Danube and settled in the Banat region that was part of the Austrian Empire at the time, and became known as Banat Bulgarians[citation needed]. There are still over ten thousand Banat Bulgarians in Banat today in the villages of Dudeştii Vechi, Vinga, Breştea and also in the city of Timişoara, with a few in Arad; however, they no longer practice Bogomolism, having converted to Roman Catholicism. There are also a few villages of Paulicians in the Serbian part of Banat, especially the villages of Ivanovo and Belo Blato, near Pančevo.

Inace je cijeli clanak zanimljiv.