Petersgrätz was formerly part of the German Empire. In the German Empire, the place was called Petersgrätz.
The place is now called Piotrówka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Petersgrätz | German Empire | Groß Strehlitz | 1939 |
| Piotrówka | Under Polish administration | Strzelce Opolskie | 1945 |
| Piotrówka | Poland | Opole | 1992 |