Table of Contents

I: The foundations of mediaeval dualism in the period of late antiquity.- II: The Paulician movement in Byzantium.- III: The rise of a heretical movement in the First Bulgarian Empire.- IV: The Bulgarian Bogomil heresy as portrayed by Cosmas the Presbyter in his Sermon against the Heretics.- V: The Bogomil heresy and Byzantine monasticism.- VI: The Bogomils and Paulicians in conflict with the Byzantine state power.- VII: The Bogomil myth as presented by Euthymius Zigabenus.- VIII: Byzantine Bogomilism after Alexius Comnenus.- IX: The western ideal of the vita apostolica and the heretical apostles from the East.- X: The emergence of the Cathar churches and their relations with the Christian East.- XI: The dualist doctrines as seen by western authors. The myth and the ethics.- XII: Catharism and the western world.- XIII: The beginnings of heresy in Bosnia.- XIV: The culmination of the fight against heresy in Western Europe.- XV: Heresy “in partibus Sclavoniae” — the crusade against Bosnia.- XVI: The struggle against the Bogomil heresy in Serbia under the Nemanjid dynasty, in the Second Bulgarian Empire, and in contemporary Byzantium.- XVII: Ecclesia Romana and “ecclesia Dei”.- XVIII: The end of the Cathar sect in western Europe.- XIX: The “Bosnian Church”.- XX: The last tidings of the Bogomils in Byzantium and Bulgaria.- XXI: The ultimate fate of the Bulgarian Paulicians.- Epilogue.