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