Rohnau was formerly part of the German Empire. In the German Empire, the place was called Rohnau.
The place is now called Trzcieniec and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Rohnau | German Empire | Zittau | 1939 |
| Trzcieniec | Under Polish administration | Zgorzelec | 1945 |
| Trzcieniec | Poland | Jelenia Góra | 1992 |