Grudzielec was formerly part of the German Empire. In the German Empire, the place was called Gruden.
The place is now called Grudzielec and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Grudzielec | German Empire | Pleschen | before the Versailles Treaty |
| Grudzielec | Poland | Ostrów Wielkopolski | after the Versailles Treaty |
| Gruden | German Empire | Ostrowo | 1939 |
| Grudzielec | Poland | Ostrów Wielkopolski | 1945 |
| Grudzielec | Poland | Kalisz | 1992 |