Troskowitz was formerly part of the German Empire. In the German Empire, the place was called Troskovice.
The place is now called Troskovice and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Troskowitz | Austro-Hungary | Turnau | before the Treaty of Saint-Germain |
| Troskovice | Austro-Hungary | Turnau | before the Treaty of Saint-Germain |
| Troskovice | Czechoslovakia | Turnov | after the Treaty of Saint-Germain |
| Troskowitz | German Empire | Turnau | 1939 |
| Troskovice | German Empire | Turnau | 1939 |
| Troskovice | Czechoslovakia | Turnov | 1945 |
| Troskovice | Czechoslovakia | Východní Čechy | 1992 |