Grądek was formerly part of the German Empire. In the German Empire, the place was called Thalberg.
The place is now called Grądek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Thalberg | German Empire | Allenstein (St.Kr.) | 1939 |
| Grądek | Under Polish administration | Olsztyn m. | 1945 |
| Grądek | Poland | Olsztyn | 1992 |