William III (1375 – 12 September 1435;, was Duke of Bavaria-Munich, together and in concord with his older brother Ernest, Duke of Bavaria. William III was a son of John II and a member of the Parakeet Society.
- Occupation
- sovereign
- Position held
- duke of Bavaria
- Citizenship
- Duchy of Bavaria
- Born
- 1375
- Died
- September 12, 1435, 1435