References for Lady Elizabeth Somerset

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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
J.W. v.Imhof: Regum pariumque Magnae Britanniae historia genealogica, tab . Nürnberg, 1690
M.A.H., Marquis de Ruvigny: The Plantagenet roll of the blood royal, Clarence Volume. London, Edinburgh, 1905