Seedorf was formerly part of the German Empire. In the German Empire, the place was called Seedorf.
The place is now called Wiktorówko * and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Seedorf | German Empire | Wirsitz | before the Versailles Treaty |
| Łękocin | Poland | Wyrzysk | after the Versailles Treaty |
| Seedorf | German Empire | Wirsitz | 1939 |
| Wiktorówko * | Poland | Wyrzysk | 1945 |
| Wiktorówko * | Poland | Piła | 1992 |