William Fitzwilliam, 1st. Earl Fitzwilliam
1643 - 1719 (76 years)(Notes: You may have to scroll down or right to see chart.)
| William Fitzwilliam, 4th. Earl Fitzwilliam | |
| B: | 30 May 1748 |
| Milton House, Peterborough, Northamptonshire, England | |
| D: | 8 Feb 1833 |
| Milton House, Peterborough, Northamptonshire, England | |
Lady Charlotte Ponsonby Abt 1750-1822 |
| Lady Charlotte Ponsonby | |
| B: | Abt 1750 |
| D: | 13 May 1822 |
| Hon. Louisa Molesworth 1749-1824 |
| Hon. Louisa Molesworth | |
| B: | 23 Oct 1749 |
| D: | 1 Sep 1824 |
| William Fitzwilliam, 3rd. Earl Fitzwilliam | |
| B: | 15 Jan 1719 |
| D: | 10 Aug 1756 |
| Lady Ann Watson-Wentworth Unknown-1769 |
| Lady Ann Watson-Wentworth | |
| B: | Unknown |
| D: | 29 Aug 1769 |
| John Fitzwilliam, 2nd. Earl Fitzwilliam Abt 1681-1728 |
| John Fitzwilliam, 2nd. Earl Fitzwilliam | |
| B: | Abt 1681 |
| D: | 28 Aug 1728 |
| Anne Stringer Unknown-Aft 1719 |
| Anne Stringer | |
| B: | Unknown |
| D: | Aft 1719 |
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| William Fitzwilliam, 1st. Earl Fitzwilliam | |
| B: | 29 Apr 1643 |
| Duchy House, Savoy, Middlesex, England | |
| D: | 28 Dec 1719 |
| Anne Cremor Abt 1647-1717 |
| Anne Cremor | |
| B: | Abt 1647 |
| D: | 4 Feb 1717 |
| Wareham, Dorset, England | |