Unieszów was formerly part of the German Empire. In the German Empire, the place was called Berthelschütz.
The place is now called Unieszów and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Berthelschütz | German Empire | Kreuzburg O.S. | 1939 |
| Unieszów | Under Polish administration | Kluczbork | 1945 |
| Unieszów | Poland | Opole | 1992 |