Seifenbach was formerly part of the German Empire. In the German Empire, the place was called Seifenbach.
The place is now called Ryžoviště and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Seifenbach | Austro-Hungary | Starkenbach | before the Treaty of Saint-Germain |
| Seifenbach | Czechoslovakia | Jilemnice | after the Treaty of Saint-Germain |
| Seifenbach | German Empire | Gablonz a. d. Neiße | 1938 |
| Ryžoviště | Czechoslovakia | Jilemnice | 1945 |
| Ryžoviště | Czechoslovakia | Semily | 1992 |
| Ryžoviště | Czech Republic | Semily | 1993 |