References for Henry II. 2nd Duke, Marquess Beaufort * of Somerset * of Dorset

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Sir B.Burke: The Dormant and Extinct Peerage. London, 1866
H. Grote: Stammtafeln. Leipzig, 1877
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. III/1, Tafel 157. Marburg, 1984