Simon de Montfort, 6th Earl of Leicester

Simon de Montfort, 6th Earl of Leicester, was a French-born noble, a son of the leader of the Albigensian Crusade, who became leader of the baronial opposition to Henry III of England. He defeated the king at Lewes in 1264 and governed England, summoning in 1265 a parliament that included knights of the shires and burgesses of the towns. He was killed at the Battle of Evesham in 1265.