Hradzen was formerly part of the German Empire. In the German Empire, the place was called Hradzen.
The place is now called Hradec and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Hradzen | Austro-Hungary | Mies | before the Treaty of Saint-Germain |
| Hradec | Austro-Hungary | Mies | before the Treaty of Saint-Germain |
| Hradec | Czechoslovakia | Stříbro | after the Treaty of Saint-Germain |
| Hradzen | Czechoslovakia | Stříbro | after the Treaty of Saint-Germain |
| Hradzen | German Empire | Mies | 1938 |
| Hradec | Czechoslovakia | Stod | 1945 |
| Hradec | Czechoslovakia | Plzeň-jih | 1992 |
| Hradec | Czech Republic | Plzeň-jih | 1993 |