Küpper b. Sagan was formerly part of the German Empire. In the German Empire, the place was called Küpper b. Sagan.
The place is now called Stara Kopernia and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Küpper b. Sagan | German Empire | Sprottau | 1939 |
| Stara Kopernia | Under Polish administration | Żagań | 1945 |
| Stara Kopernia | Poland | Zielona Góra | 1992 |