NN was formerly part of the German Empire. In the German Empire, the place was called Pechofen, Wldagh..
The place is now called NN and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Pechofen, Wldagh. | German Empire | Sprottau | 1939 |
| NN | Under Polish administration | Żagań | 1945 |
| NN | Poland | Jelenia Góra | 1992 |