Gądecz was formerly part of the German Empire. In the German Empire, the place was called Gondes.
The place is now called Gądecz and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Gondes | German Empire | Bromberg | before the Versailles Treaty |
| Gądecz | Poland | Bydgoszcz | after the Versailles Treaty |
| Gondes | German Empire | Bromberg | 1939 |
| Gądecz | Poland | Bydgoszcz | 1945 |
| Gądecz | Poland | Bydgoszcz | 1992 |