Peterhof (Tczew-Peterhof) was formerly part of the German Empire. In the German Empire, the place was called Peterhof (Dirschau-Peterhof).
The place is now called Piotrowo (Tczew-Piotrowo) and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Peterhof (Dirschau-Peterhof) | German Empire | Dirschau | before the Versailles Treaty |
| Peterhof (Tczew-Peterhof) | Poland | Tczew | after the Versailles Treaty |
| Peterhof (Dirschau-Peterhof) | German Empire | Dirschau | 1939 |
| Piotrowo (Tczew-Piotrowo) | Poland | Tczew m. | 1945 |
| Piotrowo (Tczew-Piotrowo) | Poland | Gdańsk | 1992 |