Ariston (Ancient Greek: Ἀρίστων) was a son of the renowned playwright of ancient Greece, Sophocles, by Theoris, and brother to Iophon, who was also a playwright.
[1] He lived some time in the mid 5th century BCE.
Ariston had a son whom he also named Sophocles, who is said to have produced a production of his grandfather's play Oedipus at Colonus in 401 BCE.
Whether he is the same as the Ariston who is called by Diogenes Laërtius a "writer of tragedies", one of whose tragedies was directed against Mnestheus, cannot be said with any certainty, though German scholar Johann Albert Fabricius took this for granted.
Dictionary of Greek and Roman Biography and Mythology.