Brzostów was formerly part of the German Empire. In the German Empire, the place was called Fischerau.
The place is now called Brzostów and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Brzustow | German Empire | Jarotschin | before the Versailles Treaty |
| Brzostów | Poland | Jarocin | after the Versailles Treaty |
| Brzustow | German Empire | Jarotschin | 1939 |
| Wiesengrund | German Empire | Jarotschin | 1939 |
| Fischerau | German Empire | Jarotschin | 1939 |
| Brzostów | Poland | Jarocin | 1945 |
| Brzostów | Poland | Kalisz | 1992 |