He was the second but only surviving son of Wenceslaus III Adam, Duke of Cieszyn, by his second wife Sidonia Katharina, daughter of Francis I, Duke of Saxe-Lauenburg. His older half-brother, Frederick Casimir, only son of Wenceslaus III Adam's first marriage, died a few years before he was born, in 1571.
| Identifier (URI) | Rank |
|---|---|
| dbkwik:resource/6nbH-FTGWixpAlgDbEhniA== | 5.88129e-14 |
| dbr:Adam_Wenceslaus,_Duke_of_Cieszyn | 5.88129e-14 |