^ abLodge, Edmund (1859). The Peerage and Baronetage of the British Empire (28th ed.). London: Hurst and Blackett. pp. 669–670.
^Burke, John (1832). A Genealogical and Heraldic History of the Peerage and Baronetage of the British Empire. Vol. I (4th ed.). London: Henry Colburn and Richard Bentley. p. 242.