Bladau was formerly part of the German Empire. In the German Empire, the place was called Bladau.
The place is now called Bladowo and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Bladau | German Empire | Tuchel | before the Versailles Treaty |
| Bladowo | Poland | Tuchola | after the Versailles Treaty |
| Bladau | German Empire | Tuchel | 1939 |
| Bladowo | Poland | Tuchola | 1945 |
| Bladowo | Poland | Bydgoszcz | 1992 |