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