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