William Cavendish, 6th Duke of Devonshire

William George Spencer Cavendish, 6th Duke of Devonshire,, styled Marquess of Hartington until 1811, was a British peer, courtier, nobleman and Whig politician. Known as the "Bachelor Duke", he was Lord Chamberlain of the Household between 1827 and 1828 and again between 1830 and 1834. The Cavendish banana is named after him.

21 May 1790

Born on the same birth day (21 May): David Crumb • Denis O'Connor (police officer) • Deron Miller • Dorsey Levens • Edson Buddle • Fats Waller • Forrest White • Grete Gaim • Heath L'Estrange • Lisa Evans • Léon Bourgeois • Manly Wade Wellman • Paul Barber (field hockey) • Regina M. Anderson • Rene Krhin • Richard Hatch (actor) • Ricky Williams • Ronald Isley • Sophie, Princess of Albania • Veloso (Brazilian footballer) • Vernon Biever • Vincent Crane

Born in the same month (May 1790): James Pradier • Jules Dumont d'Urville