Mähringen was formerly part of the German Empire. In the German Empire, the place was called Mähringen.
The place is now called Komunin Stary and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Komunin | Russian Empire | Serpec | 1914 |
| Komunin | Poland | Sierpc | 1919 |
| Mähringen | German Empire | Sichelberg | 1939 |
| Komunin (Stary) | Poland | Sierpc | 1945 |
| Komunin Stary | Poland | Ciechanów | 1992 |