Mrówna, Folwark was formerly part of the German Empire. In the German Empire, the place was called Mrówna.
The place is now called Mrówna and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Mrowna, Folwark | Russian Empire | Lenčica | 1914 |
| Mrówna, Folwark | Poland | Łęczyca | 1921 |
| Mrówna | German Empire | Lentschütz | 1939 |
| Mrówna | Poland | Poddębice | 1945 |
| Mrówna | Poland | Sieradz | 1992 |