Poljanskoe * was formerly part of the German Empire. In the German Empire, the place was called Friedrichsweiler.
The place is now called Poljanskoe * and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Königshuld | German Empire | Schloßberg (Ostpr.) | 1938 |
| Friedrichsweiler | German Empire | Schloßberg (Ostpr.) | 1939 |
| Kënigshulˈd | Under Soviet administration | Kaliningrad | 1945 |
| Poljanskoe * | Russian Federation | Krasnoznamensk | 1992 |