Valˈdburg was formerly part of the German Empire. In the German Empire, the place was called Waldburg.
The place is now called Nikolaevka and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Waldburg | German Empire | Gerdauen | 1939 |
| Valˈdburg | Under Soviet administration | Kaliningrad | 1945 |
| Nikolaevka | Russian Federation | Ozersk | 1992 |