Mark Gregory Pegg
Medieval historian specializing in heresy and the medieval Inquisition; author of the book The Corruption of Angels.
Books
This list of books are ONLY the books that have been ranked on the lists that are aggregated on this site. This is not a comprehensive list of all books by this author.
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1. A Most Holy War
The Albigensian Crusade and the Battle for Christendom
This book examines the Albigensian Crusade of the early thirteenth century as a defining struggle in which papal reform, crusading ideology, local politics and coercive violence fused to reshape southern France and the wider idea of Christendom. Using chronicles, legal and inquisitorial records, and diplomatic correspondence, the author shows how the campaign against Catharism was driven as much by territorial ambition, feudal rivalry and institutional imperatives as by genuine spiritual panic, and how its methods — preaching, crusader armies, sieges, and later inquisitorial procedures — remade social and ecclesiastical structures in Languedoc. The work argues that the crusade’s blend of sanctified violence and bureaucratic consolidation set enduring precedents for how the medieval church confronted dissent and expanded political control.