Jadwiżyn was formerly part of the German Empire. In the German Empire, the place was called Theresienhof.
The place is now called Jaswiżyn and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Theresienhof | German Empire | Köslin | 1939 |
| Jadwiżyn | Under Polish administration | Koszalin | 1945 |
| Jaswiżyn | Poland | Koszalin | 1992 |