Radl was formerly part of the German Empire. In the German Empire, the place was called Radl.
The place is now called Rádlo and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Radl | Austro-Hungary | Gablonz a. d. Neiße | before the Treaty of Saint-Germain |
| Radlo | Austro-Hungary | Gablonz a. d. Neiße | before the Treaty of Saint-Germain |
| Rádlo | Czechoslovakia | Jablonec nad Nisou | after the Treaty of Saint-Germain |
| Radl | Czechoslovakia | Jablonec nad Nisou | after the Treaty of Saint-Germain |
| Radl | German Empire | Gablonz a. d. Neiße | 1938 |
| Rádlo | Czechoslovakia | Jablonec nad Nisou | 1945 |
| Rádlo | Czechoslovakia | Jablonec nad Nisou | 1992 |
| Rádlo | Czech Republic | Jablonec nad Nisou | 1993 |