Dominique Barth¿my is Professor of Medieval History at Paris-IV (Sorbonne) and director of studies at the Ecole Pratique des hautes ¿des. Among his other works is Chevaliers et miracles: la violence et le sacr¿ans la soci¿. Graham Robert Edwards is the translator of Order and Exclusion: Cluny and Christendom Face Heresy, Judaism, and Islam (1000-1150) by Dominique Iogna-Prat, also from Cornell.