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