Introduction: Heribert's warning
Pop Bogomil and Cosmas the Presbyter
Stephen and Lisois : heretics in the eleventh century
Henry the Monk and the twelfth century
Valdes of Lyons and the Waldenses
Raymond VI of Toulouse : the Cathars and the Albigensian Crusade
Pierre Autier : the last Cathars
Fra Dolcino and the Apostolici
Marguerite Porete : mysticism, Beguines and heretics of the Free Spirit
John Wyclif : England and the Lollards
Jan Hus : reform and heresy in Bohemia.
