Pausanias explains the significance of Pluto's key in describing a wondrously carved cedar chest at the Temple of Hera in Elis. Numerous deities are depicted, with one panel grouping Dionysus, Persephone, the nymphs and Pluto. Pluto holds a key because "they say that what is called Hades has been locked up by Pluto, and that nobody will return back again therefrom." Natale Conti cites Pausanias in noting that keys are an attribute of Pluto as the scepter is of Jove (Greek Zeus) and the trident of Neptune (Poseidon).