Launken was formerly part of the German Empire. In the German Empire, the place was called Lounky.
The place is now called Lounky and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Launken | Austro-Hungary | Raudnitz | before the Treaty of Saint-Germain |
| Lounky | Austro-Hungary | Raudnitz | before the Treaty of Saint-Germain |
| Lounky | Czechoslovakia | Roudnice nad Labem | after the Treaty of Saint-Germain |
| Launken | German Empire | Raudnitz an der Elbe | 1939 |
| Lounky | German Empire | Raudnitz an der Elbe | 1939 |
| Lounky | Czechoslovakia | Roudnice nad Labem | 1945 |
| Lounky | Czechoslovakia | Litoměřice | 1992 |
| Lounky | Czech Republic | Litoměřice | 1993 |