Frederick Francis I ruled over the German state of Mecklenburg-Schwerin, first as Duke from 1785 to 1815, and then as Grand Duke from 1815 until his death in 1837.
- Occupation
- sovereign
- Position held
- monarch
- Citizenship
- Grand Duchy of Mecklenburg-Schwerin
- Born
- December 10, 1756
- Died
- February 1, 1837