Langgrün was formerly part of the German Empire. In the German Empire, the place was called Langgrün.
The place is now abandoned and the area belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Langgrün | Austro-Hungary | Luditz | before the Treaty of Saint-Germain |
| Dlouhý Grün | Czechoslovakia | Žlutice | after the Treaty of Saint-Germain |
| Langgrün | Czechoslovakia | Žlutice | after the Treaty of Saint-Germain |
| Langgrün | German Empire | Luditz | 1938 |
| Dlouhá | Czechoslovakia | Karlovy Vary | 1945 |
| - aufgelassen - | Czechoslovakia | Karlovy Vary | 1992 |
| - aufgelassen - | Czech Republic | Karlovy Vary | 1993 |