Count Henry of Oldenburg, Count Dietrich of Cleves, and the Crusader Slaughter of the Stedinger Heretics

Basil I, Chrysocheir, and the Annihilation of the Heretical Paulician State

The Rise and Fall of the Tanchelmian Sect in Medieval Brabant

The Radical Arnoldist Heresy, Emperor Barbarossa, and the Execution at the Tiber

Amalric of Bène, his Amalrician Disciples, and the 1210 Inquisitorial Purge in Paris

A History of the Petrobrusians, Peter of Bruys, and the Cathar Precursors of Languedoc

The Henrician Heresy, St. Bernard's Crusade, and the Battle for Southern France

Guglielma, King Ottokar I, and the Guglielmite Cult of Lombardy

The Holy War of Circumcellion Zealots Against Imperial Legions Across Roman North Africa

How the Lay Brothers of Brabant Clashed with the Low Countries Inquisition and sparked the Flemish Heresy