Editing Duke of Devonshire (section)

===The sixth, seventh and eighth Dukes===
Their only son, [[William Cavendish, 6th Duke of Devonshire|the sixth Duke]], served as [[Lord Chamberlain of the Household]] from 1827 to 1828 and from 1830 to 1834. Known as the "Bachelor Duke", he never married and on his death in 1858 the barony of Clifford fell into abeyance between his sisters. He was succeeded in the other titles by his first cousin once removed, the second Earl of Burlington, who became [[William Cavendish, 7th Duke of Devonshire|the seventh Duke]] (see the [[Earl of Burlington]] for earlier history of this branch of the family). He was the son of [[William Cavendish (1783–1812)|William Cavendish]], eldest son of the aforementioned first Earl of Burlington, youngest son of the fourth Duke. He was [[Lord-Lieutenant of Lancashire]] and Derbyshire and Chancellor of the [[University of London]] and of the [[University of Cambridge]]. He was succeeded by his second, but eldest surviving son, [[Spencer Cavendish, 8th Duke of Devonshire|the eighth Duke]]. The eighth Duke was a noted statesman and the most famous member of the Cavendish family. Known under his [[Courtesy titles in the United Kingdom|courtesy title]] of Marquess of Hartington until 1891, he held political office for a period spanning 40 years, notably as [[Secretary of State for India]] and as [[Secretary of State for War]], and three times declined to become [[Prime Minister of the United Kingdom|Prime Minister]]. He married [[Louisa Cavendish, Duchess of Devonshire|Louise, Dowager Duchess of Manchester]], who became known as the "Double Duchess".