Jupiter (mythology) Hill, where the citadel was located. In the Capitoline Triad, he was the central guardian of the state with Juno and Minerva. His sacred tree was the oak. The Romans regarded Jupiter as the equivalent of the Greek Zeus, and in Latin literature and Roman art, the myths and iconography of Zeus are adapted under the name "Iuppiter". In the Greek-influenced tradition, Jupiter was the brother of Neptune and Pluto, the Roman equivalents of Poseidon and Hades respectively. Each presided over one of the three realms of the universe: sky, the waters, and the underworld. The Italic Diespiter was also
Neptune (mythology) connection of him with the sea was attested, and may even have originally been conceived under equine form. Such a feature is a reflection of his own chronic, violent, brutal nature as earth-quaker, as well as of the link of the horse with springs, i.e. underground water, and the psychopompous character inherent in this animal. There is no such direct connection in Rome. Neptune does not show any direct equine character or linkage. On the other hand, Roman god Consus was associated with horses: his underground altar was located in the valley of the Circus Maximus at the foot of