Actually, I think the English-usage word for Krakow is Cracow. Not that much different as Hannover and Hanover (eng.). But I have a couple of English printed maps of Europe (less than a decade old) and they list most cities in their native language (Praha, Mockba, Lisboa, Roma, Milano, etc) and in parenthesis underneath, the English name, if different. And underneath Wroclaw is Breslau, and underneath Warszawa is Warsaw. But underneath Gdansk is not Danzig, nor is Posen underneath Poznan, and Kattowitz is not underneath Katowice. However, Stettin is underneath Szczyczin.