Sonsk was formerly part of the German Empire. In the German Empire, the place was called Sonsk.
The place is now called Sońsk and belongs to Poland.
Historical place name | Country | Administration | Time |
---|---|---|---|
Sonsk | Russian Empire | Cehanov | 1914 |
Sońsk | Poland | Ciechanów | 1919 |
Sonsk | German Empire | Zichenau | 1939 |
Sońsk | Poland | Ciechanów | 1945 |
Sońsk | Poland | Ciechanów | 1992 |