NN (Herczawy) was formerly part of the German Empire. In the German Empire, the place was called Hertschawa.
The place is now called Hrčava and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| NN (Herczawy) | Austro-Hungary | Teschen/Cieszyn,Český Těšín | before the Treaty of Saint-Germain |
| Herczawy | Czechoslovakia | Český Těšín | after the Treaty of Saint-Germain |
| Hrčava | Czechoslovakia | Český Těšín | after the Treaty of Saint-Germain |
| Herczawa | Poland | Cieszyn/Český Těšín | 1938 |
| Hertschawa | German Empire | Teschen | 1939 |
| Hrčava | Czechoslovakia | Ostrava/Ostrava-okolí | 1945 |
| Hrčava | Czechoslovakia | Frýdek-Místek | 1992 |
| Hrčava | Czech Republic | Frýdek-Místek | 1993 |