Medieval Heresy: Popular Movements from the Gregorian Reform to the Reformation

This comprehensive introduction to popular heretical movements in the Middle Ages spans the period from the Gregorian Reform to the Reformation. The author aims to show how monolithic catholicism was being constantly undermined by popular religious pluralism. He shows how dissent entwined itself with orthodox views to to produce a cauldron of creepy religious cocktails. Various facets of the popular movements, dualist, charismatic, mystical and evangelical, are touched upon. The book also describes the efforts of orthodox churchmen to contain reforms and enthusiasms.