Poddubnoe was formerly part of the German Empire. In the German Empire, the place was called Groß Keylau.
The place is now called Poddubnoe and belongs to Russian Federation.
Historical place name | Country | Administration | Time |
---|---|---|---|
Groß Keylau | German Empire | Wehlau | 1939 |
Gross Kajljau | Under Soviet administration | Kaliningrad | 1945 |
Poddubnoe | Russian Federation | Gvardejsk | 1992 |