Where was Ashes and Diamonds filmed?

1958 film by Andrzej Wajda

Ashes and Diamonds (1958) was filmed in Wrocław, Trzebnica and Orthodox Cathedral of the Nativity of the Virgin Mary in Wrocław, 3 places named in its Wikipedia article, in Poland. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data