Erik ThoenBas van Bavel is professor of economic and social history of the Middle Ages, head of the section of Economic and Social History, and coordinator of the knowledge centre Institutions of the Open Society at Utrecht University (the Netherlands). Erik Toen is ordinary professor at Ghent University (Belgium) specialised in rural and environmental history. He is co-ordinator of the CORN history network (Comparative Rural History of the North Sea Area). Read More Read Less