Wendy Davies is Professor of History Emerita at University College London, and an associate member of the History Faculty, University of Oxford. She has wide interests in early medieval social and economic history and her books include Wales in the Early Middle Ages (1982), Small Worlds: The Village Community in Early Medieval Brittany (1988), and Acts of Giving. Individual, Community and Church in Tenth-Century Christian Spain (2007). Paul Fouracre is Professor of Medieval History and currently Head of History at the University of Manchester. With interests in the political and social history of the Franks, his publications include Late Merovingian France: History and Hagiography 640–720 (with R. Gerberding, 1996), The Age of Charles Martel (2000); and, as editor, The New Cambridge Medieval History, Volume 1 (Cambridge University Press, 2005).