Francis Seymour Conway (1719-1794) was created 1st Marquess of Hertford in 1793. A loyal Tory courtier he was Ambassador to Paris (1762-1765) and Lord Chamberlain (1766-1782). He married Lady Isabella Fitzroy in 1741, together they had 13 children. Eight oil paintings now in the Wallace Collection were acquired by him: six works by Canaletto (and his studio) and two portraits by Sir Joshua Reynolds of Frances and Elizabeth Seymour Conway, daughters of the 1st Marquess.
Unfortunately there are only a few records that survive in the Wallace collection and these include a copy of the plans of the house in Grosvenor street and a copy of his will.