Stary Sumin was formerly part of the German Empire. In the German Empire, the place was called Altsummin.
The place is now called Okoninek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Alt-Summin | German Empire | Tuchel | before the Versailles Treaty |
| NN | German Empire | Tuchel | before the Versailles Treaty |
| Stary Sumin | Poland | Tuchola | after the Versailles Treaty |
| Okoninek | Poland | Tuchola | after the Versailles Treaty |
| Altsummin | German Empire | Tuchel | 1939 |
| Stary Sumin | Poland | Tuchola | 1945 |
| Okoninek | Poland | Tuchola | 1945 |
| Stary Sumin | Poland | Bydgoszcz | 1992 |
| Okoninek | Poland | Bydgoszcz | 1992 |