Grünau was formerly part of the German Empire. In the German Empire, the place was called Grünau.
The place is now called Gruna and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Grünau | Austro-Hungary | Mährisch-Trübau | before the Treaty of Saint-Germain |
| Gruna | Austro-Hungary | Mährisch-Trübau | before the Treaty of Saint-Germain |
| Gruna | Czechoslovakia | Moravská Třebová | after the Treaty of Saint-Germain |
| Grünau | Czechoslovakia | Moravská Třebová | after the Treaty of Saint-Germain |
| Grünau | German Empire | Mährisch Trübau | 1938 |
| Gruna | Czechoslovakia | Moravská Třebová | 1945 |
| Gruna | Czechoslovakia | Svitavy | 1992 |
| Gruna | Czech Republic | Svitavy | 1993 |