Duke John William of Saxe-Altenburg
Colonel in the Saxon army; titular Duke of Saxe-Altenburg and Jülich-Cleves-Berg (–)
Parents
Children
Siblings
- Duke Friedrich Wilhelm II, Duke of Saxe-Altenburg
- Duke Johann Philipp I, Duke of Saxe-Altenburg
- Dorothea of Saxe-Altenburg
- Duke Frederick of Saxe-Altenburg
- Dorothea Sophia, Abbess of Quedlinburg
- Anna Sophie of Saxe-Altenburg
- Dorothea Marie von Sachsen-Altenburg
- Anne Marie von Sachsen-Altenburg
- Johann Wilhelm von Sachsen-Altenburg
- Friedrich von Sachsen-Altenburg