NN was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called NN and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Bronoszewice, Fw. | Russian Empire | Plock | 1914 |
| Bronoszewice, Fw. | Poland | Płock | 1919 |
| NN | German Empire | Schröttersburg | 1939 |
| Kuskowo-Bronoszewice | Poland | Sierpc | 1945 |
| NN | Poland | Płock | 1992 |