Duke John William of Saxe-Altenburg Иоганн-Вильгельм Саксен-Альтенбургский
Colonel in the Saxon army; titular Duke of Saxe-Altenburg and Jülich-Cleves-Berg
- Sex or Gender:
- male
- Date of Birth:
- 1600-04-13
- Place of Birth:
- Torgau
- Date of Death:
- 1632-12-02
- Place of Death:
- Brieg (at present: Brzeg)
- Occupation:
- aristocrat
- Viaf ID:
- 25471103