On May 14, 1264, Earl Simon de Montfort the Younger and the baronial party marched on Lewes in Sussex, England, defeating King Henry III and taking him prisoner. This battle was part of the Second Baron’s War, which lasted for approximately three years (1263/4 – 1266/7). Edward I, Henry’s son, escaped from Lewes and gathered together another army. He eventually defeated the barons, and on August 4, 1265, Simon de Montfort was killed at Evesham.
English, Edward D. “Battle of Lewes.” Encyclopedia of the Medieval World, vol. 1. New York: Facts On File, Inc., 2005. Ancient and Medieval History Online. Facts On File, Inc. http://www.fofweb.com/activelink2.asp?
ItemID=WE49&iPin=EMW0867&SingleRecord=True (accessed May 14, 2009).
C. L. Kingsford, ed., The Song of Lewes (Oxford: Clarendon Press, 1890); David Carpenter, The Battles of Lewes and Evesham, 1264/65 (Staffordshire: Mercia, 1987); Margaret Wade Labarge, Simon de Montfort (Toronto: Macmillan, 1962).