The Complete Peerage

Cracroft's Peerage (英語). 2020年6月1日閲覧。 ^ a b Cokayne, George Edward; Gibbs, Vicary; Doubleday, H. Arthur, eds. (1913). Complete peerage of England, Scotland

de Walden, Thomas, eds. (1926). The Complete Peerage, or a history of the House of Lords and all its members from the earliest times (Gordon to Hustpierpoint)

Doubleday, Herbert Arthur, eds. (1932). The Complete Peerage, or a history of the House of Lords and all its members from the earliest times (Lindley to Moate)

^ Heraldic Media Limited. “The Peerage of Great Britain” (英語). Cracroft's Peerage The Complete Guide to the British Peerage & Baronetage. 2017年10月6日閲覧。

Limited. “Norfolk, Duke of (E, 1483)” (英語). Cracroft's Peerage The Complete Guide to the British Peerage & Baronetage. 2011年8月23日時点のオリジナルよりアーカイブ。2021年4月27日閲覧。