i understand what you are saying but i think it's too broad a generalization and more applicable to places that had historic ethnic mixtures such as vilnius wilno or on the other side of germany strasbourg stra burg and as i've tried to explain before in the west particularly in the u s people do think in ethnic terms about europe anyway k nigsberg a always was ethnically german and b never was de jure part of poland i e poland proper although the german dukes of prussia were obliged to render homage to the polish monach for years or so this was a result of the defeat of the teutonic order and its aftermath not a symptom of k nigsberg's ethnicity which remained german until when k nigsberg as such ceased to exist thus for the purposes of english speakers k nigsberg was a german city all its life