Humphrey de Bohun was a very distinguished person amongst the rebellious barons in the reign of Henry III. In the 41st of that monarch, 1263, he was excommunicated with Simon de Montfort, Earl of Leicester, and others for plundering divers churches and committing sacrilege. He was afterwards one of the commanders at Lewes, where the King was made prisoner, and was constituted Governor of Goodrich and Winchester Castles. In the year following he commanded the infantry at the Battle of Evesham, where he fell into the hands of the Royalists, and was sent prisoner to Beeston Castle in Cheshire, where he soon afterwards died, leaving issue by his wife Eleanor, daughter of William de Braose, of Brecknock, and co-heir of her mother Eve, one of five daughters of William Mareschal, Earl of Pembroke.