Koschza was formerly part of the German Empire. In the German Empire, the place was called Bärnstein.
The place is now called Konjšica and belongs to Slovenia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Koschza | Austro-Hungary | Littai/Litija | before the Treaty of Saint-Germain |
| Košica | Austro-Hungary | Littai/Litija | before the Treaty of Saint-Germain |
| Konjšica | Yugoslavia | Litija | after the Treaty of Saint-Germain |
| Bärnstein | German Empire | Trifail | 1941 |
| Konjšica | Yugoslavia | Trbovlje | 1945 |
| Konjšica | Yugoslavia | Socialistična rep. Slovenija | 1992 |
| Konjšica | Slovenia | Slowenien | 1991 |