References I37994: Henry 6th Duke, Earl, Earl, 1st Earl, 3rd Baron, Baron Howard * of Norfolk * of Arundel * of Surrey * of Norwich * Mowbray * Howard of Castle Rising

References for Henry 6th Duke, Earl, Earl, 1st Earl, 3rd Baron, Baron Howard * of Norfolk * of Arundel * of Surrey * of Norwich * Mowbray * Howard of Castle Rising

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
M.A.H., Marquis de Ruvigny: The Plantagenet roll of the blood royal, Clarence Volume. London, Edinburgh, 1905