Peterajthelen was formerly part of the German Empire. In the German Empire, the place was called Schleswighöfen.
The place is now called Novouralˈsk and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Petereithehlen | German Empire | Schloßberg (Ostpr.) | 1914 |
| Schleswighöfen | German Empire | Schloßberg (Ostpr.) | 1939 |
| Peterajthelen | Under Soviet administration | Kaliningrad | 1945 |
| Novouralˈsk | Russian Federation | Krasnoznamensk | 1992 |