Lady Mary Cornwallis
1736 - 1770 (34 years)(Notes: You may have to scroll down or right to see chart.)
| Mary Whitbread 1770-1858 |
| Mary Whitbread | |
| B: | 1770 |
| D: | 9 May 1858 |
| Pimlico, Middlesex, England | |
Sir George Grey, 1st. Baronet KCB 1767-1828 |
| Sir George Grey, 1st. Baronet KCB | |
| B: | 10 Oct 1767 |
| Howick, Northumberland, England | |
| D: | 3 Oct 1828 |
| Portsmouth Dockyard, Hampshire, England | |
| Lady Mary Cornwallis 1736-1770 |
| Lady Mary Cornwallis | |
| B: | 1736 |
| D: | 1770 |
| Samuel Whitbread, MP 1720-1796 |
| Samuel Whitbread, MP | |
| B: | 30 Aug 1720 |
| Cardington, Bedfordshire, England | |
| D: | 11 Jun 1796 |