Wallisgrün was formerly part of the German Empire. In the German Empire, the place was called Wallisgrün.
The place is now called Kůzová and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Wallisgrün | Austro-Hungary | Podersam | before the Treaty of Saint-Germain |
| Kuzová | Austro-Hungary | Podersam | before the Treaty of Saint-Germain |
| Kůzová | Czechoslovakia | Podbořany | after the Treaty of Saint-Germain |
| Wallisgrün | Czechoslovakia | Podbořany | after the Treaty of Saint-Germain |
| Wallisgrün | German Empire | Podersam | 1938 |
| Kůzová | Czechoslovakia | Plasny | 1945 |
| Kůzová | Czechoslovakia | Rakovník | 1992 |
| Kůzová | Czech Republic | Rakovník | 1993 |