Mary married Thomas George Bowes-Lyon, 11th Earl Of Strathmore And Kinghorne on 25 Mar 1800 in Saint George Hanover Square, Middlesex, England. Thomas (son of John Lyon, 9th Earl Of Strathmore And Kinghorne and Mary Eleanor Bowes, Countess Of Strathmore And Kinghorne) was born on 3 May 1773 in Tyne and Wear, Durham, England, United Kingdom; died on 27 Aug 1846 in Edinburgh, Midlothian, Scotland; was buried on 1 Sep 1846 in Edinburgh, Midlothian, Scotland. [Group Sheet] [Family Chart]

1. Lord Glamis Thomas George Bowes-Lyon was born on 6 Feb 1801 in North Hertfordshire, Hertfordshire, England, United Kingdom; was christened on 6 Feb 1801 in North Hertfordshire, Hertfordshire, England, United Kingdom; died on 27 Jan 1834 in Honfleur, Calvados, Basse-Normandie, France; was buried on 27 Jan 1834 in North Hertfordshire, Hertfordshire, England, United Kingdom.
2. Mary Isabella Bowes-Lyon was born on 8 Aug 1802 in Saint Pauls Walden, Hertfordshire, England; was christened on 8 Aug 1802 in Saint Paul's Walden, Hertfordshire, England; died on 10 Sep 1877 in Walden, Hertford, England, Great Britain.