The Duke of Devonshire by Sir Thomas Lawrence, 1811 - William George Spencer Cavendish, 6th Duke of Devonshire KG, PC (1790 – 1858), styled Marquess of Hartington until 1811, was a British peer, courtier 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.
'Aristocracy is dead', says Duke of Devonshire as he offers to surrender his title
Evelyn Cavendish, Duchess of Devonshire, GCVO, JP, LLD (27.8.1870/2.4.1960) b. Lady Evelyn Emily Mary FitzMaurice, daughter of the 5th Marquess of Lansdowne wife, Maud. Married 30.7.1892 to Victor Cavendish, who succeeded his uncle as 9th Duke of Devonshire in 1908, Evelyn became Duchess of Devonshire. Mistress of the Robes to Queen Mary from 1910/1916 & 1921/1953. She had 7 children.
Lady Harriet Elizabeth Cavendish, Duchess of Sutherland (1806-1868), was the daughter of Georgiana Dorothy Cavendish, Duchess of Devonshire (1783-1858), and William Cavendish, 5th Duke of Devonshire (1748-1811). She married in 1823 George Granville Leveson-Gower (1786-1861). Earl Gower, later 2nd Duke of Sutherland. She later became Mistress of the Robes to Queen Victoria. Their daughter, Elizabeth Georgiana (1824-1878), became Duchess of Argyll.