 Humphrey ( VI ) de Bohun was part of a line of Anglo @-@ Norman aristocrats going back to the Norman Conquest , most of whom carried the same name . His grandfather was Humphrey ( IV ) de Bohun , who had been part of the baronial opposition of Simon de Montfort , but later gone over to the royal side . He was taken prisoner at the Battle of Lewes in May 1264 , but was restored to favour after the royalist victory at the Battle of Evesham the next year . Humphrey ( IV ) ' s son , Humphrey ( V ) de Bohun , remained loyal to the baronial side throughout the Barons ' War , and was captured at Evesham on 4 August 1265 . In October that year Humphrey ( V ) died in captivity at Beeston Castle in Cheshire from injuries he had sustained in the battle . 
