David Arscott Carpenter is an English historian, currently Professor of Medieval History at King's College London. He has written widely on the reign of Henry III. David Carpenter is Professor of Medieval History at King’s College London and an expert in thirteenth-century England. He has published extensively on politics and society in the reigns of King John and Henry III as well as on the context, issue and reception of Magna Carta. His book The Struggle for Mastery: Britain 1066-1284 is widely read by scholars, students and the general public. Professor Carpenter has been tracing versions of Magna Carta 1215 for the Magna Carta Project and is currently preparing a book on the Charter for Penguin.