Płonia (Racibórz-Płonia) was formerly part of the German Empire. In the German Empire, the place was called Siemens (Ratibor-Siemens).
The place is now called Płonia (Racibórz-Płonia) and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Plania | German Empire | Ratibor (St.Kr.) | 1936 |
| Siemens (Ratibor-Siemens) | German Empire | Ratibor (St.Kr.) | 1939 |
| Płonia (Racibórz-Płonia) | Under Polish administration | Racibórz m. | 1945 |
| Płonia (Racibórz-Płonia) | Poland | Katowice | 1992 |