In Greek mythology, Thyestes was the son of Pelops, King of Olympia, and Hippodamia and father of Pelopia and Aegisthus. Thyestes and his twin brother, Atreus, were exiled by their father for having murdered their half-brother, Chrysippus in their desire for the throne of Olympia. They took refuge in Mycenae, where they ascended to the throne upon the absence of King Eurystheus, who was fighting the Heracleidae. Eurystheus had meant for their lordship to be temporary; it became permanent due to his death in conflict.
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[Greek heroic] The brother of Atreus and son of Pelops and Hippodamia. He seduced his brother's wife and also contrived a situation which led to Atreus slaying his own son. Atreus took revenge by inviting Thyestes to a banquet in which the limbs of his own two sons, slain by Atreus, were served as a dish.