Mary of Great Britain was the second-youngest daughter of George II of Great Britain and his wife, Caroline of Ansbach, and Landgravine of Hesse-Kassel as the wife of Frederick II, Landgrave of Hesse-Kassel.
- Position held
- regent
- Citizenship
- Landgraviate of Hesse-Kassel, Kingdom of Great Britain
- Born
- March 5, 1723
- Died
- January 14, 1772