Andrew Robert Buxton Cavendish, 11th Duke of Devonshire, (2 January 1920 – 3 May 2004), styled
Lord Andrew Cavendish until 1944 and
Marquess of Hartington from 1944 to 1950, was a British
Conservative and later
Social Democratic Party politician. He was a minister in the government of Prime Minister
Harold Macmillan (who was married to his aunt), but is best known for opening
Chatsworth House to the public.