Khaa was formerly part of the German Empire. In the German Empire, the place was called Khaa.
The place is now called Kyjov and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Khaa | Austro-Hungary | Rumburg | before the Treaty of Saint-Germain |
| Kyjov | Austro-Hungary | Rumburg | before the Treaty of Saint-Germain |
| Kyjov | Czechoslovakia | Rumburk | after the Treaty of Saint-Germain |
| Khaa | Czechoslovakia | Rumburk | after the Treaty of Saint-Germain |
| Khaa | German Empire | Rumburg | 1938 |
| Kyjov | Czechoslovakia | Rumburk | 1945 |
| Kyjov | Czechoslovakia | Děčín | 1992 |
| Kyjov | Czech Republic | Děčín | 1993 |