Osiek Piaseczny was formerly part of the German Empire. In the German Empire, the place was called Achenbach.
The place is now called Osiek Piaseczny and belongs to Poland.
Historical place name | Country | Administration | Time |
---|---|---|---|
Osiek Piaseczny | Russian Empire | Serpec | 1914 |
Osiek Piaseczny | Poland | Sierpc | 1919 |
Achenbach | German Empire | Sichelberg | 1939 |
Osiek Piaseczny | Poland | Sierpc | 1945 |
Osiek Piaseczny | Poland | Płock | 1992 |