This nobleman rebelled against King Henry II and, marching at the head of the Leicestershire men upon Nottingham, then kept for the King by Reginald de Lucie, got possession of the town, which he sacked, putting the greater part of the inhabitants to the sword and taking the rest prisoners. He soon afterwards, however was reduced to submission and obliged to surrender to the crown his castles of Tutbury and Duffield, which were demolished by order of the king. His lordship married Sibilla, daughter of William de Braose, Lord of Abergavenny and Brecknock, by whom he had issue: William, his successor; Milicent married Roger Mortimer of Wigmore; Agatha, concubine to King John, by whom she had Jaone, who married Llewellyn the Great, Prince of North Wales; Anghared married Llewelly Vychan, grandson of Lord Rhys, Prince of South Wales.