- Born on September 27, 1747
- Deceased on July 20, 1770, at the age of 22 years
Parents
- Francis Seymour, Francis Seymour-Conway (1718 - 1794), Marquess of Hertford, lord chamberlain, master of the Horse
- Isabella FitzRoy (1726 - 1782), lady of the Bedchamber of Queen Charlotte
Family
- Married on June 3, 1766, with Robert Stewart (1739 - 1821), homme politique irlandais