Mary Watson-Wentworth, Marchioness of Rockingham was the wife of Charles Watson-Wentworth, 2nd Marquess of Rockingham, who was prime minister of Great Britain in 1782, and previously from 1765 to 1766.
- Citizenship
- Kingdom of Great Britain, United Kingdom of Great Britain and Ireland
- Born
- 1735
- Died
- December 19, 1804
