Michael F. Cusato, O.F.M. is Director of the Franciscan Institute and Dean of the School of Franciscan Studies at St. Bonaventure University in New York State. He is a specialist on the history of the Franciscan Order in the Middle Ages, with particular expertise in the contexualization of the Franciscan sources of the thirteenth and early fourteenth centuries and the role played by apocalypticism in Franciscan identity.
G. Geltner is a Lecturer in Medieval History at University College, Oxford. He has recently published William of Saint Amour's De Periculis Novissimorum Temporum: A Critical Edition, Translation and Introduction (2008) and The Medieval Prison: A Social History (2008). He is currently writing a social history of medieval antifraternalism.