According to Hesiod, the Furies sprang forth from the spilled blood of Uranus when he was castrated by his son Cronus. According to Aeschylus' Oresteia, they are the daughters of Nyx, in Virgil's version, they are daughters of Pluto(Hades) and Nox(Nyx).[16] In some accounts, they were the daughters of Euonymè (a name for Earth) and Cronus,[17] or of Earth and Phorkys (i.e. the sea)[18]