1. | Francis Seymour-Conway, 1st Marquess of Hertford was born 5 Jul 1718, Chelsea, London, England; died 14 Jun 1794, Surrey, England. Francis married Lady Isabella Fitzroy, Countess of Hertford 29 May 1741. Lady (daughter of Charles FitzRoy, 2nd Duke of Grafton and Lady Henrietta Somerset) was born 1726; died 10 Nov 1782. [Group Sheet] Children:
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