 Complete the following phrase:  He was the son of Hugh le Despenser and was summoned to Parliament by Simon de Montfort. Hugh was summoned as Baron le Despenser on 14 December 1264 and was Chief Justiciar of England and a leader of the baronial party, and so might be deemed a baron, though the legality of that assembly is doubtful. He remained allied with Montfort to the end, and was present at the 