Duke of Devonshire

Duke of Devonshire is a title in the Peerage of England held by members of the Cavendish family. This (now the senior) branch of the Cavendish family has been one of the wealthiest British aristocratic families since the 16th century and has been rivaled in political influence perhaps only by the Marquesses of Salisbury and the Earls of Derby.

Dukes of Devonshire (1694)
"Other titles: Marquess of Hartington, in the county of Derby (1694), Earl of Devonshire (1618) and Baron Cavendish of Hardwick, in the county of Derby (1605)" The heir apparent is the present holders son Stephen William Cavendish, Marquess of Hartington (2072). The heir apparent's heir apparent is Edward James Cavendish, Lord Cavendish (2103).
 * William Cavendish, 1st Duke of Devonshire (1640–1707), only son of the 3rd Earl
 * Peregrine Andrew Morny "Stoker" Cavendish, 12th Duke of Devonshire (1944 - 2022), second son of the 11th Duke
 * William Cavendish, 13th Duke of Devonshire (1969 - 2053)
 * James Cavendish, 14th Duke of Devonshire (2010 - 2084)
 * Christian Andrew Cavendish, 15th Duke of Devonshire (2043 - )