Seal of Guy de Beauchamp, 10th Earl of Warwick, as appended to the Barons' Letter, 1301. The arms shown are those of Newburgh, the family of his predecessors the Beaumont Earls of Warwick. The Beauchamps frequently quartered their own arms with those of Newburgh, on occasion placing the latter in the 1st & 4th quarters, positions of greatest honour.