Known as ‘Crouchback’, Edmund was the younger brother of Edward I and one of his chief lieutenants. The decision by his father, Henry III, to accept the throne of Sicily on his behalf when he was ten precipitated the baronial wars of his youth. During the campaigns of 1264 and 1265, he was in France, but on returning after the royalist triumph at Evesham, he was given the forfeited earldom of Simon de Montfort. His second marriage in 1276 was prestigious and brought him the county of Champagne as his wife's dowry. He was employed by Edward chiefly as a military commander, against the Welsh (1282), in Scotland (1291–2), and in Gascony (1296), where he died; his tomb in Westminster abbey is beside that of his brother. Henry IV, when seeking the throne, claimed that Edmund, his ancestor, had been the eldest son of Henry III but passed over because of deformity: nobody believed him.
From The Kings and Queens of Britain in Oxford Reference.
Subjects: British History.