NN was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Bledzianów * and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Bledzianow, Gut | German Empire | Adelnau | before the Versailles Treaty |
| Bledzianów, Dwór | Poland | Ostrów Wielkopolski | after the Versailles Treaty |
| NN | German Empire | Ostrowo | 1939 |
| NN | Poland | Ostrzeszów | 1945 |
| Bledzianów * | Poland | Kalisz | 1992 |