Ostrowy was formerly part of the German Empire. In the German Empire, the place was called Aalkrug.
The place is now called Bryńsk Szlachecki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ostrowy-Brinsk | German Empire | Strasburg i. Westpr. | before the Versailles Treaty |
| Adlig Brinsk | German Empire | Strasburg i. Westpr. | before the Versailles Treaty |
| Ostrowy | Poland | Brodnica | after the Versailles Treaty |
| Bryńsk Szachecki | Poland | Brodnica | after the Versailles Treaty |
| Aalkrug | German Empire | Strasburg (Westpr.) | 1939 |
| Bryńsk-Ostrowy | Poland | Działdowo | 1945 |
| Bryńsk Szlachecki | Poland | Działdowo | 1945 |
| Ostrowy | Poland | Ciechanów | 1992 |
| Bryńsk Szlachecki | Poland | Ciechanów | 1992 |