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