Piotrków was formerly part of the German Empire. In the German Empire, the place was called Petersrode (Schles.).
The place is now called Piotrków and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Petrikau | German Empire | Reichenbach (Eulengebirge) | 1937 |
| Petersrode (Schles.) | German Empire | Reichenbach (Eulengebirge) | 1939 |
| Piotrków | Under Polish administration | Dzierżoniów | 1945 |
| Piotrków | Poland | Wałbrzych | 1992 |