Mary married Sir George Grey, 1st. Baronet KCB on 18 Jun 1795. George (son of Charles Grey, 1st. Earl Grey and Elizabeth Grey) was born on 10 Oct 1767 in Howick, Northumberland, England; died on 3 Oct 1828 in Portsmouth Dockyard, Hampshire, England; was buried on 13 Oct 1828 in Royal Garrison Church, Portsmouth, Hampshire, England. [Group Sheet]