Unter-Losau was formerly part of the German Empire. In the German Empire, the place was called Unter Losau.
The place is now called Dolní Lažany and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Unter-Losau | Austro-Hungary | Eger | before the Treaty of Saint-Germain |
| Dolní Losov | Austro-Hungary | Eger | before the Treaty of Saint-Germain |
| Dolní Lažany | Czechoslovakia | Cheb | after the Treaty of Saint-Germain |
| Unter-Losau | Czechoslovakia | Cheb | after the Treaty of Saint-Germain |
| Unter Losau | German Empire | Eger | 1938 |
| Dolní Lažany | Czechoslovakia | Cheb | 1945 |
| Dolní Lažany | Czechoslovakia | Cheb | 1992 |
| Dolní Lažany | Czech Republic | Cheb | 1993 |