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