The Duke of Devonshire | |
|---|---|
 William Cavendish, 3rd Duke of Devonshire | |
| Lord Lieutenant of Ireland | |
| In office 1737–1744 | |
| Monarch | George II |
| Preceded by | The Duke of Dorset |
| Succeeded by | The Earl of Chesterfield |
| Lord Steward | |
| In office 1733–1737 | |
| Monarch | George II |
| In office 1744–1749 | |
| Monarch | George II |
| Lord Privy Seal | |
| In office 1731–1733 | |
| Monarch | George II |
| Succeeded by | The Viscount Lonsdale |
| Personal details | |
| Born | 26 September 1698 |
| Died | 5 December 1755 |
| Nationality | British |
| Spouse | Catherine Hoskins |
| Children | 7 (including William Cavendish, 4th Duke of Devonshire, Lord John Cavendish, and Lord Frederick Cavendish) |
| Parent(s) | William Cavendish, 2nd Duke of Devonshire Rachel Russell |
William Cavendish, 3rd Duke of Devonshire, KG, PC (26 September 1698 – 5 December 1755) was a British nobleman and Whig politician who sat in the House of Commons from 1721 to 1729 when he inherited the Dukedom.