Meyers Orts- und Verkehrs-Lexikon des Deutschen Reichs (Meyers Gazetteer), online edition, with GOV (genealogy.net) for post-1945 Polish equivalents · meyersgaz.org / gov.genealogy.net
Bergensin, Lauenburg, Köslin, Pommern, Preussen
The only Berg?n[sz]in place in Pomerania in Meyers 1912; modern successor 22435 (Wikidata Q2327623, 54.73111 17.72472).