Wilczak (Bydgoszcz-Wilczak) was formerly part of the German Empire. In the German Empire, the place was called Prinzental (Bromberg-Prinzental).
The place is now called Wilczak (Bydgoszcz-Wilczak) and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Prinzenthal | German Empire | Bromberg | before the Versailles Treaty |
| Wilczak (Bydgoszcz-Wilczak) | Poland | Bydgoszcz m. | after the Versailles Treaty |
| Prinzental (Bromberg-Prinzental) | German Empire | Bromberg (St.Kr.) | 1939 |
| Wilczak (Bydgoszcz-Wilczak) | Poland | Bydgoszcz m. | 1945 |
| Wilczak (Bydgoszcz-Wilczak) | Poland | Bydgoszcz | 1992 |