Welzkahäuseln was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now abandoned and the area belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Welzkahäuseln | Austro-Hungary | Plan | before the Treaty of Saint-Germain |
| Welzkahäuseln | Czechoslovakia | Planá | after the Treaty of Saint-Germain |
| NN | German Empire | Tepl | 1938 |
| NN | Czechoslovakia | Stříbro | 1945 |
| - aufgelassen - | Czechoslovakia | Tachov | 1992 |
| - aufgelassen - | Czech Republic | Tachov | 1993 |