Biadacz was formerly part of the German Empire. In the German Empire, the place was called Kreuzwalde O. S..
The place is now called Biadacz and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Biadacz | German Empire | Oppeln | 1936 |
| Kreuzwalde O. S. | German Empire | Oppeln | 1939 |
| Biadacz | Under Polish administration | Opole | 1945 |
| Biadacz | Poland | Opole | 1992 |