Červený Hrádek (Jirkov-Červený Hrádek) was formerly part of the German Empire. In the German Empire, the place was called Rothenhaus.
The place is now called Červený Hrádek (Jirkov-Červený Hrádek) and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Rothenhaus | Austro-Hungary | Komotau | before the Treaty of Saint-Germain |
| Červený Hrádek | Austro-Hungary | Komotau | before the Treaty of Saint-Germain |
| Červený Hrádek | Czechoslovakia | Chomutov | after the Treaty of Saint-Germain |
| Rothenhaus | Czechoslovakia | Chomutov | after the Treaty of Saint-Germain |
| Rothenhaus | German Empire | Komotau | 1938 |
| Červený Hrádek | Czechoslovakia | Chomutov | 1945 |
| Červený Hrádek (Jirkov-Červený Hrádek) | Czechoslovakia | Chomutov | 1992 |
| Červený Hrádek (Jirkov-Červený Hrádek) | Czech Republic | Chomutov | 1993 |