Sir William le Constable, Kt of Flamborough.
Arms: Quartele de verre et de gulez
Knight. Witnesses charter of Croyland Abbey 11 Aug. 1269 (Cart.R.).
Mentioned as of Yorks. 7 Feb. 1291 (F.R.).
Owes 6 m. in Yorks. Mar. 1296 (C.R.).
Summoned from E. Riding, Yorks., to Council at York 15 Jan. 1300 (C.R.).
Having £40 lands in Yorks., summoned to serve against Scots 24 June 1300 (P.W.).