(Βία), the personification of mighty force, is described as the daughter of the Titan Pallas and Styx, and as a sister of Zelos, Cratos, and Nice. (Hesiod. Theog. 385; Aeschyl. Prom. 12.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890