Jill Harries is Professor of Ancient History at the University of St Andrews. She is the author of Sidonius Apollinaris and the Fall of Rome (1994) and, with Brian Croke, of Religious Conflict in Fourth-Century Rome (1982). She is co-editor, with Ian Wood, of The Theodosian Code: Studies in the Imperial Law of Late Antiquity (1993) and, with Michael Austin and Christopher Smith, of Modus Operandi: Essays in Honour of Geoffrey Rickman (1998).