NN was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Rokytá and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| NN (Rokytá) | Austro-Hungary | Münchengrätz | before the Treaty of Saint-Germain |
| NN | Czechoslovakia | Mnichovo Hradiště | after the Treaty of Saint-Germain |
| NN | German Empire | Deutsch Gabel | 1938 |
| NN | Czechoslovakia | Doksy | 1945 |
| Rokytá | Czechoslovakia | Mladá Boleslav | 1992 |
| Rokytá | Czech Republic | Mladá Boleslav | 1993 |