-Volavec (Radostná pod Kozákovem-) was formerly part of the German Empire. In the German Empire, the place was called Olavec.
The place is now called -Volavec (Radostná pod Kozákovem-) and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Wolawetz | Austro-Hungary | Turnau | before the Treaty of Saint-Germain |
| Volavec | Austro-Hungary | Turnau | before the Treaty of Saint-Germain |
| Volavec | Czechoslovakia | Turnov | after the Treaty of Saint-Germain |
| Wolawetz | German Empire | Turnau | 1939 |
| Olavec | German Empire | Turnau | 1939 |
| Olavec | Czechoslovakia | Turnov | 1945 |
| -Volavec (Radostná pod Kozákovem-) | Czechoslovakia | Východní Čechy | 1992 |