Sowiniec, Dwór was formerly part of the German Empire. In the German Empire, the place was called Sowiniec.
The place is now called Sowiniec and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sowiniec | German Empire | Schrimm | before the Versailles Treaty |
| Sowiniec, Dwór | Poland | Śrem | after the Versailles Treaty |
| Sowiniec | German Empire | Schrimm | 1939 |
| Sowiniec | Poland | Poznań | 1945 |
| Sowiniec | Poland | Poznań | 1992 |