Grablin was formerly part of the German Empire. In the German Empire, the place was called Gromblin.
The place is now called Grąblin and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Grablin | Russian Empire | Konin | 1914 |
| Grąblin | Poland | Konin | 1921 |
| Gromblin | German Empire | Konin | 1939 |
| Grąblin | Poland | Konin | 1945 |
| Grąblin | Poland | Konin | 1992 |