Ligau was formerly part of the German Empire. In the German Empire, the place was called Ligau.
The place is now called Ligowo and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ligowo | Russian Empire | Lipno | 1914 |
| Ligowo | Poland | Lipno | after the Versailles Treaty |
| Ligau | German Empire | Leipe (Westpr.) | 1939 |
| Ligowo | Poland | Sierpc | 1945 |
| Ligowo | Poland | Płock | 1992 |