Neptune (mythology) Neptune (mythology) Neptune ( ) was the god of freshwater and the sea in Roman religion. He is the counterpart of the Greek god Poseidon. In the Greek-influenced tradition, Neptune was the brother of Jupiter and Pluto; the brothers presided over the realms of Heaven, the earthly world, and the Underworld. Salacia was his wife. Depictions of Neptune in Roman mosaics, especially those of North Africa, are influenced by Hellenistic conventions. Neptune was likely associated with fresh water springs before the sea. Like Poseidon, Neptune was worshipped by the Romans also as a god of horses, under the name "Neptunus
Roman mythology counterparts. Rome's early myths and legends also have a dynamic relationship with Etruscan religion, less documented than that of the Greeks. While Roman mythology may lack a body of divine narratives as extensive as that found in Greek literature, Romulus and Remus suckling the she-wolf is as famous as any image from Greek mythology except for the Trojan Horse. Because Latin literature was more widely known in Europe throughout the Middle Ages and into the Renaissance, the interpretations of Greek myths by the Romans often had a greater influence on narrative and pictorial representations of "classical mythology" than Greek sources.