Modrzejów was formerly part of the German Empire. In the German Empire, the place was called Sosnowitz-Süd.
The place is now called Modrzejów (Sosnowiec-Modrzejów) and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Modrzejów | Russian Empire | Bendin | 1914 |
| Modrzejów | Poland | Będzin | 1919 |
| Modrau (Sosnowitz-Modrau) | German Empire | Sosnowitz (St.Kr.) | 1939 |
| Sosnowitz-Süd | German Empire | Sosnowitz (St.Kr.) | 1939 |
| Modrzejów (Sosnowiec-Modrzejów) | Poland | Sosnowiec m. | 1945 |
| Modrzejów (Sosnowiec-Modrzejów) | Poland | Katowice | 1992 |