NN was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Zámeček and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Lichtenwald | Austro-Hungary | Brüx | before the Treaty of Saint-Germain |
| Lovecký Zámeček | Czechoslovakia | Most | after the Treaty of Saint-Germain |
| Lichtenwald | Czechoslovakia | Most | after the Treaty of Saint-Germain |
| NN | German Empire | Brüx | 1938 |
| NN | Czechoslovakia | Horní Litvínov/Litvínov | 1945 |
| Zámeček | Czechoslovakia | Most | 1992 |
| Zámeček | Czech Republic | Most | 1993 |