Simmer was formerly part of the German Empire. In the German Empire, the place was called Simmer.
The place is now called Zimoř and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Simmer | Austro-Hungary | Leitmeritz | before the Treaty of Saint-Germain |
| Zimoř | Austro-Hungary | Leitmeritz | before the Treaty of Saint-Germain |
| Zimoř | Czechoslovakia | Litoměřice | after the Treaty of Saint-Germain |
| Simmer | Czechoslovakia | Litoměřice | after the Treaty of Saint-Germain |
| Simmer | German Empire | Leitmeritz | 1938 |
| Zimoř | Czechoslovakia | Litoměřice | 1945 |
| Zimoř | Czechoslovakia | Litoměřice | 1992 |
| Zimoř | Czech Republic | Litoměřice | 1993 |