William Hillier (4th Earl of Onslow) Onslow
1853 - 1911 (58 years)
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- 1 William Hillier (4th Earl of Onslow) Onslow [1] b. 7 Mar 1853 d. 23 Oct 1911
- Hon Florence Coulston Gardner b. Abt 1853 d. Yes, date unknown
- 2 Gwendolen Florence Mary Onslow [1.1] b. 22 Jul 1881 d. 16 February 1966)
- Rupert Edward Cecil Lee (2nd Earl of Iveagh) Guinness b. 29 Mar 1874 d. 14 Sep 1967
- 3 Lady Brigid Katharine Rachel Guinness [1.1.1] b. 30 Jul 1920 d. 8 Mar 1995
- Prince Frederick of Prussia b. 19 Dec 1911 d. 20 Apr 1966
- 4 Princess Antonia Elizabeth Brigid Louise (of Prussia) Mansfeld [1.1.1.1]
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- 4 Princess Antonia Elizabeth Brigid Louise (of Prussia) Mansfeld [1.1.1.1]
- 3 Lady Brigid Katharine Rachel Guinness [1.1.1]
- 2 Gwendolen Florence Mary Onslow [1.1]