Rundhausen was formerly part of the German Empire. In the German Empire, the place was called Rundhausen.
The place is now called Kowanowo and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kowanowo | German Empire | Obornik/Obernick | before the Versailles Treaty |
| Kowanowo | Poland | Oborniki | after the Versailles Treaty |
| Rundhausen | German Empire | Obernick | 1939 |
| Kowanowo | Poland | Oborniki | 1945 |
| Kowanowo | Poland | Poznań | 1992 |