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 150 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 1945 46 when K nigsberg as such ceased to exist Thus for the purposes of English speakers K nigsberg was a German city all its life