Zieleniec was formerly part of the German Empire. In the German Empire, the place was called Roßwiese.
The place is now called Zieleniec (Gorzów Wielkop.-Zieleniec) and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Roßwiese | German Empire | Landsberg (Warthe) | 1939 |
| Zieleniec | Under Polish administration | Gorzów Wielkopolski | 1945 |
| Zieleniec (Gorzów Wielkop.-Zieleniec) | Poland | Gorzów | 1992 |