Tanneguy III du Châtel was a Breton knight who fought in the Armagnac–Burgundian Civil War and the Hundred Years' War. A member of the Armagnac party, he became a leading adviser of King Charles VII of France, and was one of the assassins of Duke John the Fearless of Burgundy in 1419.
- Occupation
- civil servant
- Position held
- Governor of the Bastille, prévôt de Paris
- Citizenship
- France
- Born
- 1369
- Died
- 1449
