Giles Constable

Professor Emeritus
School of Historical Studies

Medieval History


Historical Studies

The medievalist Giles Constable is the author or editor of more than twenty books in the area of medieval religious and intellectual history concerning, among other subjects, the origins of monastic tithes, Peter the Venerable, the people and power of Byzantium, medieval religious and social thought, the reformation of the twelfth century, Renaissance Florence as seen through the case of Antonio Rinaldeschi, twelfth-century crusading, the history of Cluny, and the fourteenth-century crusading propagandist William of Adam. A work on the California Gold Rush appeared in 2015. He is at work on a short book on early medieval monasticism.

Dates at IAS

School of Historical Studies
School of Historical Studies


Harvard University
Harvard University


Académie des Inscriptions et Belles-Lettres, Institut de France, Foreign Associate
Accademia Nazionale dei Lincei, Foreign Member
American Historical Association, Member
American Philosophical Society, Fellow
Bavarian Academy of Sciences, Corresponding Member
British Academy, Corresponding Member
Instituto Lombardo, Accademia di Scienze e Lettere, Foreign Member
Royal Historical Society, Corresponding Fellow


Harvard University
Professor 1977–85, Director of Dumbarton Oaks Research Library and Collection 1977–84, H. C. Lea Professor of Medieval History 1966–77, Associate Professor 1961–66, Assistant Professor 1958–61
The University of Iowa
Instructor and Assistant Professor