Where was Byleth: The Demon of Incest filmed?

1972 film directed by Leopoldo Savona

Byleth: The Demon of Incest (1972) was filmed in Cerveteri, Manziana and Metropolitan City of Rome, 3 places named in its Wikipedia article, 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.

See them on the map → Wikipedia Source data