Fridrihsburg was formerly part of the German Empire. In the German Empire, the place was called Friedrichsburg.
The place is now called Furmanovka and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Friedrichsburg | German Empire | Labiau | 1939 |
| Fridrihsburg | Under Soviet administration | Kaliningrad | 1945 |
| Furmanovka | Russian Federation | Polessk | 1992 |