References for Hon. Edwina Cynthia Annette Ashley

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Sir B.Burke: A Genealogical History of the Peerages and Knightages of the British Empire. London, 1953
Sir B.Burke: Burke's Peerage and Baronetage. London, 1999
F. Freytag v.Loringhoven: Europäische Stammtafeln, Band III, Tafel 5. Marburg, 1956 (1964)
M. Huberty, A. Giraud, F. Magdelaine, B. Magdeleine: L'Allemagne Dynastique. Vol.1. Le Perreux-sur-Marne Giraud, 1976-1985
D.Schwennicke: Europäische Stammtafeln, Vol. III/2, Tafel 260. Marburg, 1983