Roznowa was formerly part of the German Empire. In the German Empire, the place was called Rosnowa.
The place is now called Rożnowa and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Roznowa | Russian Empire | Konin | 1914 |
| Rożnowa | Poland | Konin | 1921 |
| Rosnowa | German Empire | Konin | 1939 |
| Rożnowa | Poland | Konin | 1945 |
| Rożnowa | Poland | Konin | 1992 |