Includes bibliographical references and index.

Introduction / Andrew P. Roach and James R. Simpson -- The rebaptism of heretics in the orthodox canonical tradition / Kallistos Ware -- Heresy and political legitimacy in al-Andalus / Maribel Fierro -- The burning of heretical books / Alexander Murray -- Lombard religiosities reconsidered : "arianism", syncretism and the transition to Catholic Christianity / Marilyn Dunn -- Perceptions of heresy in historiographical and hagiographical sources of Aquitaine and the Loire Valley during the high Middle Ages / Julien Bellarbre -- The Bogomils' folk heritage : false friend or neglected source? / Maja Angelovska-Panova and Andrew P. Roach -- Why God keeps sending His angels : domestic disturbance and Joseph's doubts about Mary in Chester and York / Judith R. Anderson -- Vernacular poetry and the spiritual Franciscans of the Languedoc : the poems of Raimon de Cornet / Catherine Léglu -- Heretic Hussites : Oswald von Wolkenstein's "Song of Hell" ("Durch toren Weis") -- Dogging Cornwall's "secret freaks" : Béroul on the limits of European orthodoxy / James R. Simpson -- "Heresy" in Quercy in the 1240s : authorities and audiences / Claire Taylor -- Heresy, orthodoxy and the interaction between canon and civil law in Theodore Balsamon's commentaries / Peter Petkoff -- Fighting clergy, church councils and the contexts of law : the cutting edge of orthodoxy or the ambiguous limits of legitimacy? / Daniel Gerrard -- Famosus est et satis publicum : factionalism and the limits of doctrine in the case against Meister Eckhart / Alessandra Beccarisi -- The inquisition in medieval Bohemia : national and international contexts / Eva Dolezalovss -- Clerical illegitimacy in the diocese of Sodor : exception or rule in the late medieval church? / Sarah Thomas -- Learning by doing : coping with inquisitors in medieval Languedoc / James Given -- The travels and studies of Stephen of Siwnik' (c. 685-735) : re-defining Armenian orthodoxy under Islamic rule / Igor Dorfmann-Lazarev -- Catharism and heresy in Milan / Faye Taylor -- Church reform and witch-hunting in the diocese of Lausanne : the example of bishop George of Saluzzo / Georg Modestin -- Between medieval and modern beholding : Heidegger, Deleuze and the Duns Scotus affair / Philip Tonner -- Heresy and its afterlives in communist-era Poland / John M. Bates -- Not just price : scholastic economic theology and fair trade / Robert I. Mochrie.