References for John 2nd Earl Dudley * of Warwick

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Sir B.Burke: The Dormant and Extinct Peerage. London, 1866
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 114. Nürnberg, 1690
F.M.Powicke, E.B.Fryde: Handbook of British Chronology. London, 1961