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