Sonnenberg was formerly part of the German Empire. In the German Empire, the place was called Sonnenberg.
The place is now called Výsluní and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sonnenberg | Austro-Hungary | Komotau | before the Treaty of Saint-Germain |
| Suniperk | Austro-Hungary | Komotau | before the Treaty of Saint-Germain |
| Suniperk | Czechoslovakia | Chomutov | after the Treaty of Saint-Germain |
| Sonnenberg | Czechoslovakia | Chomutov | after the Treaty of Saint-Germain |
| Sonnenberg | German Empire | Komotau | 1938 |
| Suniperk | Czechoslovakia | Chomutov | 1945 |
| Výsluní | Czechoslovakia | Praha, Hlavní město | 1992 |
| Výsluní | Czech Republic | Chomutov | 1993 |