Horní Cazov was formerly part of the German Empire. In the German Empire, the place was called Ober Zassau.
The place is now abandoned and the area belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ober-Zassau | Austro-Hungary | Prachatitz | before the Treaty of Saint-Germain |
| Horní Zasov | Austro-Hungary | Prachatitz | before the Treaty of Saint-Germain |
| Horní Cazov | Czechoslovakia | Prachatice | after the Treaty of Saint-Germain |
| Ober-Zassau | Czechoslovakia | Prachatice | after the Treaty of Saint-Germain |
| Ober Zassau | German Empire | Prachatitz | 1938 |
| Horní Cazov | Czechoslovakia | Prachatice | 1945 |
| - aufgelassen - | Czechoslovakia | Prachatice | 1992 |
| - aufgelassen - | Czech Republic | Prachatice | 1993 |