References for Sir George 12th Lord (Baron) Manners * Ros of Helmsley

---

Sir B.Burke: A Genealogical History of the Peerages and Knightages of the British Empire. London, 1953
J. Dupont, J. Saillot: Cahiers de Saint-Louis. Nantes, Angers, 1976 etc.
M.A.H., Marquis de Ruvigny: The Plantagenet roll of the blood royal, ? Volume. 1905/1908