Bagno was formerly part of the German Empire. In the German Empire, the place was called Bruchdorf.
The place is now called Bagno and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Bruchdorf | German Empire | Bomst | before the Versailles Treaty |
| Bruchdorf | German Empire | Bomst | after the Versailles Treaty |
| Bruchdorf | German Empire | Grünberg i. Schles. | 1939 |
| Bagno | Under Polish administration | Sulechów | 1945 |
| Bagno | Poland | Zielona Góra | 1992 |