Lady Mary Cornwallis
1736 - 1770 (34 years)(
= Descendancy chart to this point, 
= Expand, 
= Collapse)
- 1 Lady Mary Cornwallis [1] b. 1736 d. 1770
- Samuel Whitbread, MP b. 30 Aug 1720 d. 11 Jun 1796
- 2 Mary Whitbread [1.1] b. 1770 d. 9 May 1858
- + Sir George Grey, 1st. Baronet KCB b. 10 Oct 1767 d. 3 Oct 1828
- + Sir George Grey, 1st. Baronet KCB b. 10 Oct 1767 d. 3 Oct 1828
- 2 Mary Whitbread [1.1]