Isabella Bennet FitzRoy, Duchess of Grafton
1668 - 1723 (55 years)
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- 1 Isabella Bennet FitzRoy, Duchess of Grafton [1] b. 1668 d. 7 Feb 1723
- Henry FitzRoy, 1st Duke of Grafton b. 28 Sep 1663 d. 9 Oct 1690
- 2 Charles FitzRoy, 2nd Duke of Grafton [1.1] b. 25 Oct 1683 d. 6 May 1757
- Lady Henrietta Somerset b. 27 Aug 1690 d. 9 Aug 1726
- 3 Lady Isabella Fitzroy, Countess of Hertford [1.1.1] b. 1726 d. 10 Nov 1782
- Francis Seymour-Conway, 1st Marquess of Hertford b. 5 Jul 1718 d. 14 Jun 1794
- 4 Vice-Admiral Lord Hugh Seymour [1.1.1.1] b. 29 Apr 1759 d. 11 Sep 1801
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- 4 Vice-Admiral Lord Hugh Seymour [1.1.1.1]
- 3 Lady Isabella Fitzroy, Countess of Hertford [1.1.1]
- 2 Charles FitzRoy, 2nd Duke of Grafton [1.1]