Losinjetz was formerly part of the German Empire. In the German Empire, the place was called Hasenfeld.
The place is now called Łosiniec Stary and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Losinjetz | German Empire | Wongrowitz | before the Versailles Treaty |
| Łosiniec Stary | Poland | Wągrowiec | after the Versailles Treaty |
| Hasenfeld | German Empire | Eichenbrück | 1939 |
| Łosiniec Stary | Poland | Wągrowiec | 1945 |
| Łosiniec Stary | Poland | Poznań | 1992 |