^His brass shows the bordure or and azure as does the painting in the manuscript by Sir Thomas Wriothesley. Burke's General Armory, 1884, p.202[1] blasons the bordure as compony argent and azure; this would have appeared at court as Lèse-majesté, it would not have escaped notice at court that the bordure (perhaps a difference (Mercer, p.156)) is identical to the "Beaufort bordure" adopted by the ancestors of Lady Margaret Beaufort, mother of King Henry VII. Bordure adopted for arms of Beaufort, legitimised progeny of John of Gaunt, 3rd surviving son of King Edward III: Royal arms of King Edward III within a bordure compony argent and azure. Possibly the Beaufort bordure might be granted as an especial mark of royal favour (no evidence that Clement was especially favoured) as was the Beaufort label to the descendants of the second marriage of Ralph Neville, 1st Earl of Westmorland (d.1425) to Joan Beaufort, a legitimised daughter of John of Gaunt, 4th son of King Edward III