References for Eleanor Poynings
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.
D.Schwennicke: Europäische Stammtafeln, Vol. III/4, Tafel 712. Marburg, 1989