This collection presents new and original research on the long thirteenth century, from c.1180-c.1330, including England's relations with Wales and Ireland. The range of topics embraces royal authority and its assertion and limitation, the great royal inquests and judicial reform of the reign of Edward I, royal manipulation of noble families, weakening royal administration at the end of the century, sex and love in the upper levels of society, monastic/lay relations, and the administration of building projects. Contributors: RUTH BLAKELY, NICOLA COLDSTREAM, BETH HARTLAND, CHARLES INSLEY, ANDY KING, SAMANTHA LETTERS, JOHN MADDICOTT, MARC MORRIS, ANTHONY MUSSON, DAVID A. POSTLES, MICHAEL PRESTWICH, SANDRA G. RABAN, BJORN WEILER, JOCELYN WOGAN-BROWNE, ROBERT WRIGHT. THE EDITORS are all in the Department of History, University of Durham.