Mary Stuart, Countess of Bute, 1st Baroness Mount Stuart was the wife of British nobleman John Stuart, 3rd Earl of Bute, who served as Prime Minister from 1762 to 1763.
- Occupation
- politician
- Position held
- spouse of the prime minister of the United Kingdom
- Citizenship
- Kingdom of Great Britain
- Born
- January 19, 1718
- Died
- November 6, 1794