Unter-Kostreinitz was formerly part of the German Empire. In the German Empire, the place was called Unterkönigsbrunn.
The place is now called Spodnja Kostrivnica and belongs to Slovenia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Unter-Kostreinitz | Austro-Hungary | Pettau/Ptuj | before the Treaty of Saint-Germain |
| Spodnja Kostrivnica | Austro-Hungary | Pettau/Ptuj | before the Treaty of Saint-Germain |
| Spodnja Kostrivnica | Yugoslavia | Šmarje | after the Treaty of Saint-Germain |
| Unterkönigsbrunn | German Empire | Cilli | 1941 |
| Spodnja Kostrivnica | Yugoslavia | Celje | 1945 |
| Spodnja Kostrivnica | Yugoslavia | Socialistična rep. Slovenija | 1992 |
| Spodnja Kostrivnica | Slovenia | Slowenien | 1991 |