Kosiadel was formerly part of the German Empire. In the German Empire, the place was called Grünau.
The place is now called Kozie Doły and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kosiadel | German Empire | Glogau | 1937 |
| Grünau | German Empire | Glogau | 1939 |
| Kozie Doły | Under Polish administration | Głogów | 1945 |
| Kozie Doły | Poland | Legnica | 1992 |