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