This nobleman, William de Beauchamp, feudal Lord of Elmley, attended King Henry III, in the 37th year of his reign [1253], into Gascoigne, and in two years afterwards marched under the banner of Robert de Clare, Earl of Gloucester, against the Scots. In the 41st of the same reign, he had summons (with other illustrious persons) to meet the king at Chester on the feast day of St Peter de Vincula, well fitted with horse and arms to oppose the incursions of Llewellyn, Prince of Wales. Lord Beauchamp m. Isabel, dau. of William Mauduit, of Hanslape, co. Bucks, heritable chamberlain of the exchequer, and sister and heiress of William Mauduit, Earl of Warwick (who inherited that dignity from his cousin, Margery de Newburgh, Countess of Warwick, in the year 1263). His lordship made his will in 1268, the year in which he died. Besides the daus. mentioned above [there are no daughters named in this article], Lord Beauchamp left four sons, viz., William; John, of Holt, co. Worcester; Walter, of Powyke and Alcester