From Citizendium, the Citizens' Compendium
Atreus : A character from Greek mythology who was the grandson of Tantalos and son of Pelops, as well as being father of Agamemnon and Menelaos. His brother Thyestes seduced his wife Aerope, so Atreus took revenge against his brother by killing his Thyestes' sons and serving their flesh to Thyestes at a banquet.
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