Ljauknen was formerly part of the German Empire. In the German Empire, the place was called Hohenbruch (Ostpr.).
The place is now called Gromovo and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Lauknen | German Empire | Labiau | 1938 |
| Hohenbruch (Ostpr.) | German Empire | Labiau | 1939 |
| Ljauknen | Under Soviet administration | Kaliningrad | 1945 |
| Gromovo | Russian Federation | Slavsk | 1992 |