Fitzwilliam (Barony)
A peerage of the Kingdom of Great Britain.
Letters patent issued on Thu 19th Apr 1742
To William Fitzwilliam as Hereditary peerage (already peer of Ireland).
Holders
| Number | Surname | Forenames | Held from | Held to |
|---|---|---|---|---|
| 1st | Fitzwilliam | William | Thu 19th Apr 1742 | Tue 10th Aug 1756 |
| 2nd | Wentworth-Fitzwilliam | William | Tue 10th Aug 1756 | Fri 8th Feb 1833 |
| 3rd | Wentworth-Fitzwilliam | Charles William | Fri 8th Feb 1833 | Sun 4th Oct 1857 |
| 4th | Wentworth-Fitzwilliam | William Thomas Spencer | Sun 4th Oct 1857 | Thu 20th Feb 1902 |
| 5th | Wentworth-Fitzwilliam | William Charles de Meuron | Thu 20th Feb 1902 | Mon 15th Feb 1943 |
Peerage extinct on Fri 21st Sep 1979 with the 8th holder .