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Dorothy Bentinck, Duchess of Portland

Dorothy Bentinck
Her Grace
Duchess of Portland
Dorothy Cavendish, wife of William Cavendish Bentinck, 3rd Duke of Portland (1738-1809) by George Romney.jpg
Dorothy Bentinck, Duchess of Portland
by George Romney
Title held 8 November 1766 – 3 June 1794
Spouse(s) 3rd Duke of Portland
Issue
Father Duke of Devonshire
Mother Baroness Clifford
Born (1750-08-27)27 August 1750
Died 3 June 1794(1794-06-03) (aged 43)
London

Dorothy Bentinck, Duchess of Portland (née Lady Dorothy Cavendish; 27 August 1750 – 3 June 1794) was Duchess of Portland as wife of William Cavendish-Bentinck, 3rd Duke of Portland, the Prime Minister of Great Britain. She is also a great-great-great-grandmother of Queen Elizabeth II through the queen's maternal grandmother.

Lady Dorothy Cavendish was born on 27 August 1750 to William Cavendish, 4th Duke of Devonshire, the Prime Minister of Great Britain and his wife Lady Charlotte Boyle, 6th Baroness Clifford.

On 8 November 1766, Lady Dorothy Cavendish was married to William Cavendish-Bentinck, 3rd Duke of Portland. They were parents of six children:

The Duchess of Portland died in 1794 and was buried in St Marylebone Parish Church, Marylebone, London. She is a great-great-great-grandmother of Queen Elizabeth II (see ancestry of Elizabeth II)


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