Bogdane
Bogdahnen is the German name of three places formerly located in the Niederung district in East Prussia in today's Kaliningrad Oblast in Russia:
- Alt Bogdahnen , (1938 to 1946: Altbolzfelde ), submerged place in Slavsk Raion
- Inherited Bogdahnen (1928 to 1946 Bolzfelde ), since 1946: Verkhny Bisser (Kaliningrad) , settlement in Slavsk Raion
- New Bogdahnen , (1938 to 1946 Bolzhagen ), from 1946: Nizhny Bisser, submerged place in Slavsk Raion