Mühlgrün was formerly part of the German Empire. In the German Empire, the place was called Mühlgrün.
The place is now called Mlýnek and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Mühlgrün | Austro-Hungary | Eger | before the Treaty of Saint-Germain |
| Mühlgrün | Czechoslovakia | Cheb | after the Treaty of Saint-Germain |
| Mühlgrün | German Empire | Eger | 1938 |
| Mühlgrün | Czechoslovakia | Cheb | 1945 |
| Mlýnek | Czechoslovakia | Cheb | 1945 |
| Mlýnek | Czechoslovakia | Cheb | 1992 |
| Mlýnek | Czech Republic | Cheb | 1993 |