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