William Cavendish, 7th Baron Cavendish, 4th Marquess of Hartington, 4th Duke of Devonshire, was born 8 May 1720 in Hardwick Hall, Derbyshire, England, United Kingdom to William Cavendish, 3rd Duke of Devonshire (1698-1755) and Catherine Hoskins (c1700-1777) and died 2 October 1764 Spa, Liège, Belgium of unspecified causes. He married Charlotte Elizabeth Boyle, 6th Baroness Clifford (1731-1754) 27 March 1748 in St James, Westminster, Greater London, England, United Kingdom. Charlemagne (747-814)/s, Hugh Capet (c940-996)/s.


Offspring of William Cavendish, 4th Duke of Devonshire and Charlotte Elizabeth Boyle, 6th Baroness Clifford (1731-1754)
Name Birth Death Joined with
William Cavendish, 5th Duke of Devonshire (1748-1811) 14 December 1748 29 July 1811 Piccadilly, London, England, United Kingdom Georgiana Spencer (1757-1806)
Elizabeth Christiana Hervey (1757-1824)
Dorothy Cavendish (1750-1794) 27 August 1750 3 June 1794 Burlington House, Piccadilly, Greater London, England, United Kingdom William Henry Bentinck, 3rd Duke of Portland (1738-1809)
Richard Cavendish (1751-1781) 19 June 1751 Hardwick, Derbyshire, England, United Kingdom 12 September 1781 Naples, Campania, Italy
George Augustus Henry Cavendish, 1st Earl of Burlington (1754-1834) 21 March 1754 4 May 1834 Burlington House, London, Greater London, England, United Kingdom Elizabeth Compton (1760-1835)

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Robin Patterson