Mladostov was formerly part of the German Empire. In the German Empire, the place was called Mladostov.
The place is now called Mladostov and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Mladostow | Austro-Hungary | Turnau | before the Treaty of Saint-Germain |
| Mladostav | Austro-Hungary | Turnau | before the Treaty of Saint-Germain |
| Mladostov | Czechoslovakia | Turnov | after the Treaty of Saint-Germain |
| Mladostow | German Empire | Turnau | 1939 |
| Mladostov | German Empire | Turnau | 1939 |
| Mladostov | Czechoslovakia | Turnov | 1945 |
| Mladostov | Czechoslovakia | Východní Čechy | 1992 |