Edward Cavendish, 10th Duke of Devonshire

His Grace The Duke of Devonshire KG MBE TD
Cavendish in 1938
Member of the House of Lords
Lord Temporal
In office 6 May 1938 – 26 November 1950
Preceded by	The 9th Duke of Devonshire
Succeeded by	The 11th Duke of Devonshire
Under-Secretary of State for Dominion Affairs
In office 1936–1940
Monarchs	Edward VIII George VI
Preceded by	Sir Douglas Hacking, Bt
Succeeded by	Geoffrey Shakespeare
Under-Secretary of State for India and Burma
In office 1940–1943
Monarch	George VI
Preceded by	Sir Hugh O'Neill, Bt
Succeeded by	The Earl of Munster
Under-Secretary of State for the Colonies
In office 1943–1945
Monarch	George VI
Preceded by	Harold Macmillan
Succeeded by	Arthur Creech Jones
Personal details
Born	Edward William Spencer Cavendish (1895-05-06)6 May 1895 Mayfair, London[1]
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 Lady Evelyn Petty-Fitzmaurice
Alma mater	Trinity College, Cambridge

Edward William Spencer Cavendish, 10th Duke of Devonshire (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 physician and suspected serial killer John Bodkin Adams.