Ostpreußen

country DE 54.710, 20.452

Ostpreussen is a bare historical polity with no single modern successor (split 1945 among Russia/Kaliningrad Oblast, Poland, Lithuania) -- per project policy it stays current with a centroid+note rather than taking a modernPlaceId. Stored coordinate (near Hamburg) had nothing to do with East Prussia; corrected to Konigsberg, its historical capital (now Kaliningrad), and set wikidataQid to Q103801 'East Prussia'.

Wikidata · Q103801 ↗