Cerberus

Orpheus, the son of god of music and healing, Apollo, and muse Calliope, was the greatest bard, mystic, and prophet in ancient Greek mythology. He had the most melodious voice of all mortals and his lyre playing enchanted gods, mortals,...

Ancient Greeks believed that all dead people ended up to a dark underworld called Hades (Άδης), where three judges decided on their afterlife fate