Duke Wilhelm I, Duke of Austria Wilhelm of Austria, Wilhelm Habsburg
Duke of Inner Austria (1386–1406)
- Sex or Gender:
- male
- Date of Birth:
- 1370-01-01
- Place of Birth:
- Vienna
- Date of Death:
- 1406-07-15
- Place of Death:
- Vienna
- Father:
- Leopold III, Duke of Austria
- Mother:
- Viridis Visconti
- Spouse:
- Joanna II of Naples
- Occupation:
- regent
- Viaf ID:
- 9241151778242618130008
