Kerndorf was formerly part of the German Empire. In the German Empire, the place was called Kerndorf.
The place is now abandoned and the area belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kerndorf | Austro-Hungary | Senftenberg | before the Treaty of Saint-Germain |
| Kerndorf | Czechoslovakia | Žamberk | after the Treaty of Saint-Germain |
| Kerndorf | German Empire | Grulich | 1938 |
| Jadrná | Czechoslovakia | Žamberk | 1945 |
| - aufgelassen - | Czechoslovakia | Rychnov nad Kněžnou | 1992 |
| - aufgelassen - | Czech Republic | Rychnov nad Kněžnou | 1993 |