The Earldom of Cumberland, created in 1525, became extinct in 1643. The dukedom was created in the Peerage of England in 1644 for Prince Rupert of the Rhine, nephew of King Charles I. When he died without male heirs, the title was created again in the Peerage of England in 1689 for Prince George of Denmark, husband of Princess Anne, younger daughter of King James II. He also died without heirs, in 1708. Neither of these men, however, was usually known by his peerage title.
The third creation, in the Peerage of Great Britain, was for Prince William, the third son of King George II. Other titles granted to Prince William were Marquess of Berkhampstead, Earl of Kennington, Viscount Trematon and Baron Alderney. Since the Prince died unmarried and without children, his titles became extinct at his death.
|The Prince Rupert
House of Wittelsbach
also: Earl of Holderness (1644)
|17 December 1619
son of Frederick V, Elector Palatine and Elizabeth Stuart, Queen of Bohemia
|Never Married||29 November 1682|
|Nephew of Charles I, died without legitimate issue.|
|The Prince George
House of Oldenburg
also: Earl of Kendal and Baron Wokingham (1689)
|2 June 1653
son of Frederick III of Denmark and Sophie Amalie of Brunswick-Lüneburg
28 July 1683
|28 October 1708|
|Husband of Queen Anne, died without surviving issue.|
|The Prince William, Duke of Cumberland
also Marquess of Berkhamstead, Earl of Kennington, Viscount Trematon and Baron Alderney (Great Britain, 1726)
|26 April 1721
Leicester House, London
son of George II of Great Britain and Caroline of Ansbach
|Never married||31 October 1765|
|Also known as "Butcher" Cumberland and Sweet William.|
Further information: Duke of Cumberland and Strathearn
The sole title-holder was Prince Henry (1745–1790), 3rd son of Frederick, Prince of Wales, the eldest son and heir apparent of King George II and the father of King George III. He died without legitimate issue, when the dukedom again became extinct.
Further information: Duke of Cumberland and Teviotdale
This double dukedom, in the Peerage of Great Britain, was bestowed on Prince Ernest Augustus (1771–1851) (later King of Hanover), the fifth son and eighth child of King George III of the United Kingdom and King of Hanover. In 1919 it was suspended under the Titles Deprivation Act 1917 and as of 2019[update] has not been restored to its titular heir.