Alt Festenberg was formerly part of the German Empire. In the German Empire, the place was called Alt Festenberg.
The place is now called Stara Twardogóra and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Alt Festenberg | German Empire | Groß Wartenberg | 1939 |
| Stara Twardogóra | Under Polish administration | Syców | 1945 |
| Stara Twardogóra | Poland | Wrocław | 1992 |