The use of masks in the ancestor cult is also attested in Etruria. Excavations of tombs in the area of the ancient city of Clusium (modern Chiusi, Tuscany) have yielded a number of sheet-bronze masks dating from the Etruscan late orientalizing period. In the 19th century it was thought that they were related to the Mycenaean examples, but whether they served as actual death masks cannot be proven. The most credited hypothesis holds that they were originally fixed to cinerary urns, to give them a human appearance. In Orientalising Clusium, the anthropomorphization of urns was a prevalent phenomenon that was strongly rooted in local religious beliefs.