Wassermühl was formerly part of the German Empire. In the German Empire, the place was called Wassermühl.
The place is now called Bądkowo-Rochny and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Badkowo Rochny | Russian Empire | Lipno | 1914 |
| Bądkowo-Rochny | Poland | Płock | 1919 |
| Wassermühl | German Empire | Schröttersburg | 1939 |
| Bądkowo-Rochny | Poland | Płock | 1945 |
| Bądkowo-Rochny | Poland | Płock | 1992 |