History
Elected 1999
History of medieval political thought; comparative work on law and legalities in the early Middle Ages; punishment and the construction of authority
The political, economic, religious and social history of the Mediterranean in the late Middle Ages, especially Italy and Spain; attitudes in late medieval Europe to non-Christian religions and peoples
The Mongol Empire & its relations with the Catholic West; the Crusades & the Latin East; & the eastern Islamic world in the Middle Ages.