And that's the reason why they were heretics for Rome. They didnt belive Christ was son of God. There are many evidences that support it, you dont know everything. Stop acting like smartest person on earth. In Bosnia catholics and especialy orthodox were never majority. There was some orthodox in Hum, and most of nobles were pretending that they are catholics when Pope send investigation envoys. Do you know that Kingdom of Hungary launched few crusades against Kingdom of Bosnia??????? Why would he send it if rulers and people were catholic? Its against logic. Most of catholics and orthodox migrated to Bosnia in later centuries when Bosnia lacked manpower to farm because of wars and plague that killed its male population. There was some rulers and nobles in history that were catholic, some of them even did prosecute bogomils but it didnt do much. Majority of people and many of nobles remained bogomils until conquest of Ottoman Islamic Empire. And this mod is "located" in 1200s not 1400s! I hope you realise that geopolitical picture was much more different!