Nothwendig was formerly part of the German Empire. In the German Empire, the place was called Notwendig.
The place is now called Potrzebowice and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Nothwendig | German Empire | Filehne | before the Versailles Treaty |
| Potrzebowice, Nadleśnictwo | Poland | Czarnków | after the Versailles Treaty |
| Notwendig | German Empire | Scharnikau (Wartheland) | 1939 |
| Potrzebowice | Poland | Czarnków | 1945 |
| Potrzebowice | Poland | Piła | 1992 |