Rudnitsch was formerly part of the German Empire. In the German Empire, the place was called Amwald.
The place is now called Rudniczyn and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Rudnitsch | German Empire | Wongrowitz | before the Versailles Treaty |
| Rudniczyn | Poland | Wągrowiec | after the Versailles Treaty |
| Amwald | German Empire | Eichenbrück | 1939 |
| Rudniczyn | Poland | Wągrowiec | 1945 |
| Rudniczyn | Poland | Piła | 1992 |