Southern's Making of the Middle Ages (1953) established his reputation as a medievalist. This pioneering work opened up new vistas in medieval history and it has been translated into many languages. Southern's studies of St Anselm and Robert Grosseteste have redefined their historiography.
Bibliography
The Making of the Middle Ages (1953)
Medieval Humanism: And Other Studies (1970)
St Anselm and his Biographer (1963)
Robert Grosseteste: The Growth of an English Mind in Medieval Europe (1986, 2nd ed. 1992)
St. Anselm: A Portrait in a Landscape (1992)
Western Society and the Church in the Middle Ages (1970)
Western Views of Islam in the Middle Ages (1962)
Scholastic Humanism and the Unification of Europe (1997)
History and Historians: Selected Papers of R.W. Southern, edited by Robert Bartlett (2004)