Astydamas (Ancient Greek: Ἀστυδάμας) was a tragic poet of ancient Greece who lived around the turn of 4th century BCE, from roughly 423 to 363 BCE.
[1][2] He is very often confounded in ancient sources with his more well known and successful son Astydamas the Younger, who was also a tragic poet.
[3][4] Astydamas was the member of a large, multigenerational theatre dynasty.
He was the son of Morsimus, grandson of Philocles, and nephew of Aeschylus (by way of Morsimus's wife, who was Aeschylus's sister), all of whom were renowned tragic poets.
Dictionary of Greek and Roman Biography and Mythology.