Simon de 1160?-1218; Fr. soldier: led crusade against Albigenses
Simon de Earl of Leicester 1208?-65; Eng. statesman & soldier: son of Simon (Fr. soldier)
See Montfort in American Heritage Dictionary 4
French-born English nobleman who led the baronial opposition to Henry III. After his military victory over the king at Lewes in southeast England (1264), Montfort was the effective ruler of England. In 1265 he called a representative legislature regarded as England's first full parliament.