Wilpischen was formerly part of the German Empire. In the German Empire, the place was called Eichenfeld.
The place is now called Kaspijskoe and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Wilpischen | German Empire | Gumbinnen | 1928 |
| Eichenfeld | German Empire | Gumbinnen | 1939 |
| Ajhenfelˈd | Under Soviet administration | Kaliningrad | 1945 |
| Kaspijskoe | Russian Federation | Gusev | 1992 |