Slawoszewek was formerly part of the German Empire. In the German Empire, the place was called Ruhmingen.
The place is now called Sławoszewek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Slawoszewek | Russian Empire | Konin | 1914 |
| Sławoszewek | Poland | Konin | 1921 |
| Sławoszewek | German Empire | Konin | 1939 |
| Hohenfelde | German Empire | Konin | 1939 |
| Ruhmingen | German Empire | Konin | 1939 |
| Sławoszewek | Poland | Konin | 1945 |
| Sławoszewek | Poland | Konin | 1992 |