Lubcz was formerly part of the German Empire. In the German Empire, the place was called Lobusch.
The place is now called Lubcz and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Lubcz | German Empire | Znin | before the Versailles Treaty |
| Lubcz | Poland | Żnin | after the Versailles Treaty |
| Lobusch | German Empire | Dietfurt (Wartheland) | 1939 |
| Lubcz | Poland | Żnin | 1945 |
| Lubcz | Poland | Bydgoszcz | 1992 |