Maurice John George PONSONBY, 4th Baron de Mauley
1846 - 1945 (99 years)(
= Descendancy chart to this point, 
= Expand, 
= Collapse)
- 1 Maurice John George PONSONBY, 4th Baron de Mauley [1] b. 1846 d. 1945
- Hon. Madeleine HANBURY-TRACY
- 2 Capt. Gerald PONSONBY [1.1] b. 1876 d. 1914
- 2 Hubert William PONSONBY, 5th Baron de Mauley [1.2] b. 1878 d. 1962
- Elgiva Margaret DUNDAS
- 3 Gerald PONSONBY, 6th Baron de Mauley [1.2.1] b. 1921 d. 2002
- 3 Col. Hon. Thomas PONSONBY [1.2.2] b. 1930 d. 2001
- Maxine Henrietta THELLUSSON b. 1934 d. 2020
- 3 Gerald PONSONBY, 6th Baron de Mauley [1.2.1]
- 2 Capt. Gerald PONSONBY [1.1]