Dupine was formerly part of the German Empire. In the German Empire, the place was called Kostberg.
The place is now called Rytwiniec and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Dupine | German Empire | Rosenberg O.S. | 1936 |
| Kostberg | German Empire | Rosenberg O.S. | 1939 |
| Rytwiniec | Under Polish administration | Olesno | 1945 |
| Rytwiniec | Poland | Częstochowa | 1992 |