NN was formerly part of the German Empire. In the German Empire, the place was called Petersdorf.
The place is now called NN and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Petersdorf | Austro-Hungary | Leitmeritz | before the Treaty of Saint-Germain |
| Petrovice | Austro-Hungary | Leitmeritz | before the Treaty of Saint-Germain |
| Stvolínecké Petrovice | Czechoslovakia | Litoměřice | after the Treaty of Saint-Germain |
| Petersdorf | Czechoslovakia | Litoměřice | after the Treaty of Saint-Germain |
| Petersdorf | German Empire | Leitmeritz | 1938 |
| Stvolínecké Petrovice | Czechoslovakia | Česká Lípa | 1945 |
| NN | Czechoslovakia | Česká Lípa | 1992 |
| NN | Czech Republic | Česká Lípa | 1993 |