Ralph de Mortimer, in 12th year of Henry III, had livery cf all his lands in Gloucester, Southampton, Berks, Salop and Hereford. He erected several strong castles, by which he was enabled to extend his possession against the Welsh; so that Prince Llewelin, seeing that he could not successfully cope with him, gave him his daughter Gladuse Duy, widow of Reginald de Braose, in marriage.