Grossopolan was formerly part of the German Empire. In the German Empire, the place was called Opolany.
The place is now called Opolany and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Grossopolan | Austro-Hungary | Poděbrad | before the Treaty of Saint-Germain |
| Opolany | Austro-Hungary | Poděbrad | before the Treaty of Saint-Germain |
| Opolan | Czechoslovakia | Poděbrady | after the Treaty of Saint-Germain |
| Groß-Opolan | German Empire | Podiebrad | 1939 |
| Opolany | German Empire | Podiebrad | 1939 |
| Opolany | Czechoslovakia | Poděbrady | 1945 |
| Opolany | Czechoslovakia | Střední Čechy | 1992 |