NN was formerly part of the German Empire. In the German Empire, the place was called Mehltheuer, Nieder.
The place is now called NN and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Nieder Podiebrad | German Empire | Strehlen | 1937 |
| Mehltheuer, Nieder | German Empire | Strehlen | 1939 |
| NN | Under Polish administration | Strzelin | 1945 |
| NN | Poland | Wrocław | 1992 |