Kljajn Kakšen was formerly part of the German Empire. In the German Empire, the place was called Kleinbirkenhain.
The place is now called Alekseevka and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Klein Kackschen | German Empire | Tilsit-Ragnit | 1938 |
| Kleinbirkenhain | German Empire | Tilsit-Ragnit | 1939 |
| Kljajn Kakšen | Under Soviet administration | Kaliningrad | 1945 |
| Alekseevka | Russian Federation | Krasnoznamensk | 1992 |