Roznotin was formerly part of the German Empire. In the German Empire, the place was called Hroznětín.
The place is now called Hroznětín and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Roznotin | Austro-Hungary | Ledeč | before the Treaty of Saint-Germain |
| Roznotín | Austro-Hungary | Ledeč | before the Treaty of Saint-Germain |
| Hroznětín | Czechoslovakia | Ledeč nad Sázavou | after the Treaty of Saint-Germain |
| Rosnotin | German Empire | Ledetsch an der Sasau | 1939 |
| Hroznětín | German Empire | Ledetsch an der Sasau | 1939 |
| Hroznětín | Czechoslovakia | Ledeč nad Sázavou | 1945 |
| Hroznětín | Czechoslovakia | Východní Čechy | 1992 |