Oleszno was formerly part of the German Empire. In the German Empire, the place was called Riesenburg.
The place is now called Oleszno and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Riesenburg | German Empire | Schubin | before the Versailles Treaty |
| Oleszno | Poland | Szubin | after the Versailles Treaty |
| Riesenburg | German Empire | Altburgund | 1939 |
| Oleszno | Poland | Wągrowiec | 1945 |
| Oleszno | Poland | Piła | 1992 |