Unčín (Krupka-Unčín) was formerly part of the German Empire. In the German Empire, the place was called Hohenstein.
The place is now called Unčín (Krupka-Unčín) and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Hohenstein | Austro-Hungary | Aussig | before the Treaty of Saint-Germain |
| Unčín | Austro-Hungary | Aussig | before the Treaty of Saint-Germain |
| Unčín | Czechoslovakia | Ústí nad Labem | after the Treaty of Saint-Germain |
| Hohenstein | Czechoslovakia | Ústí nad Labem | after the Treaty of Saint-Germain |
| Hohenstein | German Empire | Aussig | 1938 |
| Unčín | Czechoslovakia | Ústí nad Labem | 1945 |
| Unčín (Krupka-Unčín) | Czechoslovakia | Teplice | 1992 |
| Unčín (Krupka-Unčín) | Czech Republic | Teplice | 1993 |