Třebel was formerly part of the German Empire. In the German Empire, the place was called Triebl.
The place is now called Třebel and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Triebl | Austro-Hungary | Plan | before the Treaty of Saint-Germain |
| Třebel | Austro-Hungary | Plan | before the Treaty of Saint-Germain |
| Třebel | Czechoslovakia | Planá | after the Treaty of Saint-Germain |
| Triebl | Czechoslovakia | Planá | after the Treaty of Saint-Germain |
| Triebl | German Empire | Tachau | 1938 |
| Třebel | Czechoslovakia | Tachov | 1945 |
| Třebel | Czechoslovakia | Tachov | 1992 |
| Třebel | Czech Republic | Tachov | 1993 |