Dr Sophie Thérèse Ambler is a historian of medieval Europe and the Crusades. She is a Lecturer in Medieval History at Lancaster University and a Fellow of the Royal Historical Society. She has appeared on radio and TV for BBC and Channel 4 and written for BBC History Magazine and The Historian. She divides her time between Lancaster and London.
Seizing power from King Henry III, Simon de Montfort ruled England at the head of a council, proclaiming his campaign against the crown a holy war. England’s first revolution was brought to an end in 1265 at the Battle of Evesham when Montfort and his followers were killed in the greatest noble slaughter since Hastings.