Dąbrowiec was formerly part of the German Empire. In the German Empire, the place was called Königsdubrau.
The place is now called Dąbrowiec and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Dubrau, Königlich | German Empire | Sorau (Lausitz) | 1930 |
| Königsdubrau | German Empire | Sorau (Lausitz) | 1939 |
| Dąbrowiec | Under Polish administration | Żary | 1945 |
| Dąbrowiec | Poland | Zielona Góra | 1992 |