Pirten was formerly part of the German Empire. In the German Empire, the place was called Pirten.
The place is now called Brť and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Pirten | Austro-Hungary | Tepl | before the Treaty of Saint-Germain |
| Brť | Czechoslovakia | Teplá | after the Treaty of Saint-Germain |
| Pirten | Czechoslovakia | Teplá | after the Treaty of Saint-Germain |
| Pirten | German Empire | Tepl | 1938 |
| Brť | Czechoslovakia | Toužim | 1945 |
| Brť | Czechoslovakia | Karlovy Vary | 1992 |
| Brť | Czech Republic | Karlovy Vary | 1993 |