Siedmica was formerly part of the German Empire. In the German Empire, the place was called Siebenhuben.
The place is now called Siedmica and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Siebenhuben | German Empire | Jauer | 1939 |
| Siedmica | Under Polish administration | Jawor | 1945 |
| Siedmica | Poland | Legnica | 1992 |