Aeschylus (525-456)
I.He added a second actor and drastically reduced the chorus to 12.  Aristotle says he also introduced scene painting. He won the prize for tragedy 13 times, but of his 90 plays, only 7 survive.
II.The Oresteia is composed of the Agamemnon, The Choephoroe (The Libation Bearers), and The Eumenides.
House of Atreus
Tantalus was a son of Zeus; in an attempt to prove the gods were no better than mortals, he killed his son Pelops and served him to the gods at a banquet.
Pelops was revived by the gods but Demeter had taken a bite, so he was given an ivory shoulder.
I.