Swobodnia was formerly part of the German Empire. In the German Empire, the place was called Swobodnia.
The place is now called Swobodnia and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Swobodnia | Russian Empire | Plonsk | 1914 |
| Swobodnia | Poland | Płońsk | 1919 |
| Swobodnia | German Empire | Plöhnen | 1939 |
| Swobodnia | Poland | Nowy Dwór Mazowiecki | 1945 |
| Swobodnia | Poland | Warszawa | 1992 |