William (Sir) (2nd Bt) Cowper
- Yes, date unknown
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| George Nassau 3rd Earl Cowper 1738-1789 |
| George Nassau 3rd Earl Cowper | |
| B: | 26 Aug 1738 |
| D: | 22 Dec 1789 |
 | Anne Gore -1826 |
| Anne Gore | |
| M: | 2 Jun 1775 |
| D: | 5 Sep 1826 |
| William (2nd Earl of Cowper) (Clavering-) Cowper | |
| B: | 13 Aug 1709 |
| D: | 18 Sep 1764 |
| Henrietta (of Grantham) Butler | |
| M: | 27 Jun 1732 |
| D: | 23 Sep 1747 |
| Georgina Carteret 1716-1780 |
| Georgina Carteret | |
| B: | 1716 |
| M: | 1 May 1750 |
| D: | 21 Aug 1780 |
| William (1st Earl of Cowper) Cowper Abt 1665-1723 |
| William (1st Earl of Cowper) Cowper | |
| B: | Abt 1665 |
| Hertford Castle | |
| D: | 10 Oct 1723 |
| Mary Clavering -1724 |
| Mary Clavering | |
| M: | Sep 1706 |
| D: | 5 Feb 1724 |
| Penelope Madan -1805 |
| Penelope Madan | |
| D: | 22 Dec 1805 |
| Sir Alexander (1st Bt) Maitland 1728-1820 |
| Sir Alexander (1st Bt) Maitland | |
| B: | 21 Mar 1728 |
| M: | 6 Jul 1754 |
| D: | 14 Feb 1820 |
| Judith Cowper -Yes, date unknown |
| Judith Cowper | |
| D: | Yes, date unknown |
| Martin (Colonel) Madan -Yes, date unknown |
| Martin (Colonel) Madan | |
| D: | Yes, date unknown |
| Justice Spencer Cowper -Yes, date unknown |
| Justice Spencer Cowper | |
| D: | Yes, date unknown |
| William (Sir) (2nd Bt) Cowper -Yes, date unknown |
| William (Sir) (2nd Bt) Cowper | |
| D: | Yes, date unknown |
| Sarah Holled -Yes, date unknown |
| Sarah Holled | |
| D: | Yes, date unknown |