Siedlec, Dwór was formerly part of the German Empire. In the German Empire, the place was called Heimdorf *.
The place is now called Siedlec * and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Siedlec, Gutsbezirk | German Empire | Schroda | before the Versailles Treaty |
| Siedlec, Dwór | Poland | Środa | after the Versailles Treaty |
| Heimdorf * | German Empire | Schroda | 1939 |
| Siedlec, Osada | Poland | Środa | 1945 |
| Siedlec * | Poland | Poznań | 1992 |