Roskosch was formerly part of the German Empire. In the German Empire, the place was called Rozkoš.
The place is now called Rozkos and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Roskosch | Austro-Hungary | Poděbrad | before the Treaty of Saint-Germain |
| Rozkoš | Austro-Hungary | Poděbrad | before the Treaty of Saint-Germain |
| Rozkoš | Czechoslovakia | Poděbrady | after the Treaty of Saint-Germain |
| Roskosch | German Empire | Neuenburg an der Elbe | 1939 |
| Rozkoš | German Empire | Neuenburg an der Elbe | 1939 |
| Rozkos | Czechoslovakia | Poděbrady | 1945 |
| Rozkos | Czechoslovakia | Střední Čechy | 1992 |