Roger Stalley is Professor of the History of Art at Trinity College, Dublin. His previous books include Architecture and Sculpture in Ireland 1150-1350 (1971), The Cistercian Monasteries of Ireland (1987), Irish High Crosses (1991), and Ireland and Europe in the Middle Ages (1993). He has published over fifty articles on various aspects of medieval sculpture and architecture. He is a member of the Royal Irish Academy and an Honorary member of the Royal Institute of Architects of Ireland.