Kobyla Góra was formerly part of the German Empire. In the German Empire, the place was called Heideberg.
The place is now called Kobyla Góra and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kobylagura | German Empire | Schildberg | before the Versailles Treaty |
| Kobylagora | German Empire | Schildberg | before the Versailles Treaty |
| Kobyla Góra | Poland | Kępno | after the Versailles Treaty |
| Haideberg | German Empire | Kempen (Wartheland) | 1939 |
| Heideberg | German Empire | Kempen (Wartheland) | 1939 |
| Kobylagóra | Poland | Ostrzeszów | 1945 |
| Kobyla Góra | Poland | Kalisz | 1992 |