Lastomerci was formerly part of the German Empire. In the German Empire, the place was called Lazmersdorf.
The place is now called Lastomerci and belongs to Slovenia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Lastomerzen | Austro-Hungary | Luttenberg/Ljutomer | before the Treaty of Saint-Germain |
| Lastomerci | Austro-Hungary | Luttenberg/Ljutomer | before the Treaty of Saint-Germain |
| Lastomerci | Yugoslavia | Ljutomer | after the Treaty of Saint-Germain |
| Lazmersdorf | German Empire | Oberradkersburg | 1941 |
| Lastomerci | Yugoslavia | Murska Sobota | 1945 |
| Lastomerci | Yugoslavia | Socialistična rep. Slovenija | 1992 |
| Lastomerci | Slovenia | Slowenien | 1991 |