R. Andrew McDonald is Professor, Department of History, Brock University, and former Director of the Centre for Medieval and Renaissance Studies at Brock University. His previous titles include Manx kingship in its Irish Sea setting, 1187-1229: King Rognvaldr and the Crovan dynasty (Four Courts Press, 2007) and Outlaws of Medieval Scotland: Challenges to the Canmore Kings 1058-1266 (Tuckwell Press, 2003).