Where was Hearts and Armour filmed?
1983 film by Giacomo Battiato
Hearts and Armour (1983) was filmed in Soriano nel Cimino and Gole dell'Alcantara, 2 places named in its Italian Wikipedia’s Produzione section, in Italy. 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.
Places per Italian Wikipedia's Produzione section
Italian Wikipedia’s Produzione section names 2 places. Each links to the sentence that says so.

