Stary Kobylin was formerly part of the German Empire. In the German Empire, the place was called Alt Kobylin.
The place is now called Kobylin Stary and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Alt-Kobylin | German Empire | Krotoschin | before the Versailles Treaty |
| Stary Kobylin | Poland | Krotoszyn | after the Versailles Treaty |
| Alt Kobylin | German Empire | Krotoschin | 1939 |
| Kobylin Stary | Poland | Krotoszyn | 1945 |
| Kobylin Stary | Poland | Leszno | 1992 |