References for Mary de Bohun

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Sir B.Burke: The Dormant and Extinct Peerage. London, 1866
W.K. v.Isenburg: Europäische Stammtafeln, Band II, Tafel 61. Marburg, 1953 (1965)
M.A.H., Marquis de Ruvigny: The Plantagenet roll of the blood royal, Essex Volume. London, Edinburgh, 1908
F.M.Powicke, E.B.Fryde: Handbook of British Chronology. London, 1961
D.Schwennicke: Europäische Stammtafeln, Vol. II, Tafel 85. Marburg, 1984
A.M.Stokvis: Manuel d'histoire. Amsterdam, 1966
A.Taute: The Kings and Queens of Great Britain. London, 1970
F.L.Weis: Ancestral Roots of Sixty Colonists. 6th Ed., Baltimore, 1988