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