Plachtin was formerly part of the German Empire. In the German Empire, the place was called Plachtin.
The place is now called Plachtín and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Plachtin | Austro-Hungary | Kralowitz | before the Treaty of Saint-Germain |
| Plachtín | Austro-Hungary | Kralowitz | before the Treaty of Saint-Germain |
| Plachtín | Czechoslovakia | Kralovice | after the Treaty of Saint-Germain |
| Plachtin | German Empire | Luditz | 1938 |
| Plachtín | Czechoslovakia | Plasny | 1945 |
| Plachtín | Czechoslovakia | Plzeň-sever | 1992 |
| Plachtín | Czech Republic | Plzeň-sever | 1993 |