Proper noun
Thyestes
(Greek mythology) A king of Olympia; the son of Pelops and Hippodamia; and father of Pelopia and Aegisthus. He and his brother Atreus were exiled by their father for having murdered their half-brother Chrysippus.
After eating his own sons' corpses, Thyestes asked an oracle how best to gain revenge. Source: Internet
As Thyestes finishes his meal, Atreus produces the hands and heads, revealing to the horrified Thyestes what he has done. Source: Internet
His first move was to pursue Thyestes and all his family - that is, his own kin - but Thyestes managed to escape from Mycenae. Source: Internet
He used the Spartan army to drive out Aegisthus and Thyestes from Mycenae and place Agamemnon on the throne. Source: Internet
However, when Thyestes returns, Atreus secretly kills Thyestes' sons, Pelopia and Aegisthus. Source: Internet
Menelaus succeeded Tyndareus in Sparta, while Agamemnon, with his brother's assistance, drove out Aegisthus and Thyestes to recover his father's kingdom. Source: Internet