References for Ulick 1st Marquess, 2nd Earl Bourke * of Clanricarde * of Saint-Albans
M.A.H., Marquis de Ruvigny: The Plantagenet roll of the blood royal, Clarence Volume. London, Edinburgh, 1905
F.M.Powicke, E.B.Fryde: Handbook of British Chronology. London, 1961