Grünberg was formerly part of the German Empire. In the German Empire, the place was called Grünberg.
The place is now called Komorowo and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Komorowo | Russian Empire | Kolo | 1914 |
| Komorowo | Poland | Koło | 1921 |
| Grünberg | German Empire | Warthbrücken | 1939 |
| Komorowo | Poland | Koło | 1945 |
| Komorowo | Poland | Włocławek | 1992 |