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