William John Robert Cavendish, Marquess of Hartington
1917 - 1944 (26 years)( = Descendancy chart to this point, = Expand, = Collapse)
- 1 William John Robert Cavendish, Marquess of Hartington [1] b. 10 Dec 1917 d. 10 Sep 1944
- + Kathleen Agnes Kennedy b. 20 Feb 1920 d. 13 May 1948
- + Kathleen Agnes Kennedy b. 20 Feb 1920 d. 13 May 1948