Frederick William III was King of Prussia from 16 November 1797 until his death in 1840. He was concurrently Elector of Brandenburg in the Holy Roman Empire until 6 August 1806, when the empire was dissolved.
- Occupation
- composer, monarch
- Position held
- Prince-Elector, King of Prussia, margrave
- Citizenship
- Kingdom of Prussia
- Born
- August 3, 1770
- Died
- June 7, 1840