- William Cavendish
William Cavendish may refer to the following people:
Earls
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William Cavendish, 1st Earl of Devonshire (d. 1626)
*William Cavendish, 2nd Earl of Devonshire (1591–1628)
*William Cavendish, 3rd Earl of Devonshire (1617–1684)Dukes
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William Cavendish, 1st Duke of Newcastle-upon-Tyne (1592–1674)
*William Cavendish, 1st Duke of Devonshire (1640–1707)
*William Cavendish, 2nd Duke of Devonshire (1673–1729)
*William Cavendish, 3rd Duke of Devonshire (1698–1755)
*William Cavendish, 4th Duke of Devonshire (1720–1764)
*William Cavendish, 5th Duke of Devonshire (1748–1811)
*William Cavendish, 6th Duke of Devonshire (1790–1858)
*William Cavendish, 7th Duke of Devonshire (1808–1891)
*William Cavendish, Marquess of Hartington (1917–1944) son of Edward Cavendish, the 10th Duke and elder brother of the 11th.Others
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William Cavendish (courtier) (1505–1557), English courtier
*William Cavendish (1783-1812) , son of Lord George Augustus Henry Cavendish, later 1st Earl of Burlington
*William Cavendish, 2nd Baron Chesham (1815–1882)
*William Cavendish, Earl of Burlington (born 1969), son of Peregrine Cavendish, 12th Duke of Devonshire
*William Hunter Cavendish , colonial pioneer
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