Žigarski vrh was formerly part of the German Empire. In the German Empire, the place was called Siegersberg.
The place is now called NN and belongs to Slovenia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Siegersberg | Austro-Hungary | Rann/Brežice | before the Treaty of Saint-Germain |
| Žigarski Vrh | Austro-Hungary | Rann/Brežice | before the Treaty of Saint-Germain |
| Žigarski vrh | Yugoslavia | Dravograd | after the Treaty of Saint-Germain |
| Siegersberg | German Empire | Rann | 1941 |
| Žigrski vrh | Yugoslavia | Trbovlje | 1945 |
| Žigrski Vrh | Yugoslavia | Socialistična rep. Slovenija | 1992 |
| NN | Slovenia | Slowenien | 1991 |