The Duchess of Portland | |
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![]() Dorothy Bentinck, Duchess of Portland by George Romney | |
Tenure | 8 November 1766 – 3 June 1794 |
Born | 27 August 1750 |
Died | 3 June 1794 London, England | (aged 43)
Buried | St Marylebone Parish Church |
Spouse(s) | |
Issue | |
Father | William Cavendish, 4th Duke of Devonshire |
Mother | Charlotte Boyle, 6th Baroness Clifford |
Dorothy Bentinck, Duchess of Portland (née Lady Dorothy Cavendish; 27 August 1750 – 3 June 1794) was Duchess of Portland and the wife of William Cavendish-Bentinck, 3rd Duke of Portland, the Prime Minister of Great Britain.