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