Grudzianka was formerly part of the German Empire. In the German Empire, the place was called Schleife.
The place is now called Grudzianka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Schleife | German Empire | Neutomischel | before the Versailles Treaty |
| Grudzianka | Poland | Nowy Tomyśl | after the Versailles Treaty |
| Schleife | German Empire | Grätz (Wartheland) | 1939 |
| Grudzianka | Poland | Nowy Tomyśl | 1945 |
| Grudzianka | Poland | Poznań | 1992 |