Trnava was formerly part of the German Empire. In the German Empire, the place was called Dornau bei Fraßlau.
The place is now called Trnava and belongs to Slovenia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Dornau | Austro-Hungary | Cilli/Celje | before the Treaty of Saint-Germain |
| Trnova | Austro-Hungary | Cilli/Celje | before the Treaty of Saint-Germain |
| Trnava | Yugoslavia | Celje | after the Treaty of Saint-Germain |
| Dornau bei Fraßlau | German Empire | Cilli | 1941 |
| Trnava | Yugoslavia | Celje | 1945 |
| Trnava | Yugoslavia | Socialistična rep. Slovenija | 1992 |
| Trnava | Slovenia | Slowenien | 1991 |