^Chester, Joseph Lemuel, ed. (1876). The Marriage, Baptismal and Burial Registers of the Collegiate Church or Abbey of St. Peter, Westminster (volume X ed.). London: Mitchell and Hughes. p. 255.
G.E. Cokayne, Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden _The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant_ (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume 2, page 367
Doyle, James William Edmund. The Official Baronage of England, Showing the Succession, Dignities, and Offices of Every Peer from 1066 to 1885, with Sixteen Hundred Illustrations. (p. 602) London: Longmans, Green, 1886. googlebooks Retrieved 16 March 2008