Page "Wrocław" Paragraph 117

Like all of Poland, Wrocław's population is predominantly Roman Catholic ; the city is the seat of an Archdiocese.

However, post-war resettlements from Poland's ethnically and religiously more diverse former eastern territories ( known in Polish as Kresy ) and the eastern parts of post-1945 Poland ( see Operation Vistula ) account for a comparatively large portion of Greek Catholics and Orthodox Christians of mostly Ukrainian and Lemko descent.