| Dates of Existence | 1748-1833 |
| Surname | Fitzwilliam |
| Forenames | William Wentworth- |
| Title | 2nd Earl Fitzwilliam |
| Epithet | succ. 1756; 4th Earl Fitzwilliam in Irish Peerage; 2nd Earl Fitzwilliam of Norborough in English Peerage; Lord Lieutenant of Ireland 1794-1795 |
| Code | NA9656 |
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