Grosswossek was formerly part of the German Empire. In the German Empire, the place was called Velký Osek.
The place is now called Velký Osek and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Grosswossek | Austro-Hungary | Kolin | before the Treaty of Saint-Germain |
| Vosek Velký | Austro-Hungary | Kolin | before the Treaty of Saint-Germain |
| Osek Velký | Austro-Hungary | Kolin | before the Treaty of Saint-Germain |
| Velký Osek | Czechoslovakia | Kolín | after the Treaty of Saint-Germain |
| Groß-Wossek | German Empire | Kolin | 1939 |
| Velký Osek | German Empire | Kolin | 1939 |
| Velký Osek | Czechoslovakia | Kolín | 1945 |
| Velký Osek | Czechoslovakia | Střední Čechy | 1992 |