Sosnowiec Pienki was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Pieńki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sosnowiec Pienki | Russian Empire | Breziny | 1914 |
| Sosnowiec-Pieńki | Poland | Brzeziny | 1921 |
| NN | German Empire | Litzmannstadt/Lodsch | 1939 |
| Sosnowiec-Pienki | Poland | Brzeziny | 1945 |
| Pieńki | Poland | Łódź | 1992 |