R. W. Southern is a Fellow of the British Academy and an Honorary Fellow of Balliol, Exeter, and St John's College, Oxford, and of Sidney Sussex College, Cambridge. He was President of St John's College, Oxford, from 1969 to 1981. He was Chichele Professor of Modern History at the University of Oxford from 1961 to 1969, and is a past President of the Selden Society and the Royal Historical Society. His publications include: "The Making of the Middle Ages" (1953), "Western Views of Islam in the Middle Ages" (1962), "Western Society and the Church in the Middle Ages" (1970), "Robert Grosseteste"...