This volume addresses a theme of special significance for Byzantine studies. Byzantium has traditionally been deemed a civilisation which deferred to authority and set special store by orthodoxy, canon and proper order. Since 1982 when the distinguished Russian Byzantinist Alexander Kazhdan wrote that 'the history of Byzantine intellectual opposition has yet to be written', scholars have increasingly highlighted cases of subversion of 'correct practice' and 'correct belief' in Byzantium. This innovative scholarly effort has produced important results, although it has been hampered by the lack...