Edward Cavendish, 10th Duke of Devonshire

His Grace The Duke of Devonshire KG MBE TD
Under-Secretary of State for Dominion Affairs
In office 1936–1940
Monarchs	Edward VIII George VI
Preceded by	Douglas Hacking
Succeeded by	Geoffrey Shakespeare
Personal details
Born	(1895-05-06)6 May 1895 St George in the East, Stepney, London
Died	26 November 1950(1950-11-26) (aged 55) Eastbourne
Nationality	British
Political party	Conservative
Spouse	Lady Mary Gascoyne-Cecil
Children	William Cavendish, Marquess of Hartington Andrew Cavendish, 11th Duke of Devonshire Lady Mary Cavendish Lady Elizabeth Cavendish Lady Anne Tree
Parents	Victor Cavendish, 9th Duke of Devonshire Evelyn Petty-Fitzmaurice
Alma mater	Trinity College, Cambridge

Edward William Spencer Cavendish, 10th Duke of Devonshire, KG, MBE, TD (6 May 1895 – 26 November 1950), known as the Marquess of Hartington from 1908 to 1938, was a British politician. He was the head of the Devonshire branch of the House of Cavendish. He had careers with the army and in politics and was a senior freemason. His sudden death, apparently of a heart attack at the age of fifty-five, occurred in the presence of the suspected serial killer John Bodkin Adams.