References I37725: John 4th Duke, Duke, Earl, Earl, 10th Lord (Baron), 11th Lord (Baron) de Mowbray * of Norfolk * of Nottingham * of Surrey and Warenne * Mowbray * Segrave

References for John 4th Duke, Duke, Earl, Earl, 10th Lord (Baron), 11th Lord (Baron) de Mowbray * of Norfolk * of Nottingham * of Surrey and Warenne * Mowbray * Segrave

Sir B.Burke: Burke's Peerage and Baronetage. London, 1999
F.M.Powicke, E.B.Fryde: Handbook of British Chronology. London, 1961