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