William Cavendish-Bentinck, 3rd Duke of Portland

Prime Minister of the United Kingdom from 1807 to 1809

William Henry Cavendish Cavendish-Bentinck, 3rd Duke of Portland (14 April 1738 – 30 October 1809) was a British Whig and then a Tory politician during the late Georgian era. He served as chancellor of the University of Oxford (1792–1809) and as Prime Minister of Great Britain (1783) and then of the United Kingdom (1807–1809). The gap of 23 years between his two terms as prime minister is the longest of any British prime minister.

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