The son of Lord George Augustus Henry Cavendish; educated at Eton and Trinity College, Cambridge, he was MP for Knaresborough, (1804), Aylesbury (1804-06), and Derby borough (1806-12). He died of a fall from his carriage.

REFERENCES TO William Cavendish:

Thomas Creevey to Eleanor Creevey, 31 January 1810 in The Creevey Papers: A Selection from the Correspondence & Diaries of the late Thomas Creevey, M.P. (London: John Murray, 1903)