Earl of Dumbarton is a title in the peerage of the United Kingdom, referring to Dumbarton in the area West Dunbartonshire, Scotland. The title has been created twice, once in the Peerage of Scotland in 1675 and once in the Peerage of the United Kingdom in 2018.

History

The title was first created in the Peerage of Scotland on 9 March 1675 for Lord George Douglas, son of the Marquess of Douglas and younger brother of the Earl of Selkirk, for services fighting in the Franco-Dutch War. Lord Dumbarton was also created Lord Douglas of Ettrick. He was married to Anne Douglas (née Wheatley), the first Countess of Dumbarton, who was the sister of Catherine Fitzroy, Duchess of Northumberland. Following the death of their only son, the unmarried second Earl, both titles became extinct on 7 January 1749. On 16 July 2018, the title was recreated in the Peerage of the United Kingdom by Queen Elizabeth II as one of the two subsidiary titles for her grandson Prince Harry, Duke of Sussex, on the occasion of his wedding, when he was also created Baron Kilkeel. The title was announced on 19 May 2018. The heir to the earldom is his son, Prince Archie of Sussex.

Earls of Dumbarton, first creation, 1675

1675—1692 Douglas Castle son of William Douglas, 1st Marquess of Douglas, and Lady Mary Gordon 1 child St-Germain-en-Laye, Paris, France aged 0 years years 1692—1749 son of George Douglas, 1st Earl of Dumbarton, and Anne Wheatley (died 1691) Douai, France aged 0 years years

Earl of Dumbarton, second creation, 2018

House of Windsor 2018–present also: Duke of Sussex and Baron Kilkeel (2018) St Mary's Hospital, London son of Charles, Prince of Wales, and Lady Diana Spencer 19 May 2018 2 children

Line of succession