In the later part of his story Herodotus is dependent on the family traditions of Harpagus, whose treason is justified by the cruelty with which Astyages had treated him (the story of Atreus and Thyestes is transferred to them).
And Thyestes, and recovered his father's kingdom.
His kingly office had come to him from Pelops through the blood-stained hands of Atreus and Thyestes, and had brought with it a certain fatality which explained the hostile destiny which pursued him.
Plutarch (Cicero, 5) mentions it as reported of Aesopus, that, while representing Atreus deliberating how he should revenge himself on Thyestes, the actor forgot himself so far in the heat of action that with his truncheon he struck and killed one of the servants crossing the stage.
Varius Rufus published his famous tragedy Thyestes from an MS. which he found amongst the papers of Cassius after his death, is due to a confusion of Cassius's murderer, Q.
AEGISTHUS, in Greek legend, was the son of Thyestes by his own daughter Pelopia.
Having murdered his stepbrother Chrysippus, Atreus fled with Thyestes to Mycenae, where he succeeded Eurystheus in the sovereignty.
His wife Aerope was seduced by Thyestes, who was driven from Mycenae.
To avenge himself, Thyestes sent Pleisthenes (Atreus' son whom Thyestes had brought up as his own) to kill Atreus, but Pleisthenes was himself slain by his own father.
Thyestes fled in horror.
Subsequently Atreus married the daughter of Thyestes, Pelopia, who had by her own father a son, Aegisthus, who was adopted by Atreus.
Thyestes was found by Agamemnon and Menelaus, the sons of Atreus, and imprisoned at Mycenae.
Aegisthus being sent to murder Thyestes, mutual recognition took place, and Atreus was slain by the father and son, who seized the throne, and drove Agamemnon and Menelaus out of the country (Thucydides i.
Among the sons of Pelops by Hippodameia were Atreus, Thyestes and Chrysippus.