Bruce Campbell is Emeritus Professor of Medieval Economic History at Queen's University, Belfast. He belongs to the Academia Europaea, Academy of Social Sciences, British Academy, Royal Historical Society and Royal Irish Academy, and is a former fellow of the Wissenschaftskolleg zu Berlin. A graduate of the Universities of Liverpool and Cambridge, his teaching at Queen's from 1973 to 2010 embraced the economic and environmental history of Britain and Ireland over the last millennium. He is the author of English Seigniorial Agriculture 1250 1450 (2000), co-author of A Medieval Capital and Its G...