Atreus

Contending with Thyestes for the throne of Mycenae and betrayed by him in marriage and in the matter of the golden lamb, Atreus took a vengeance that made the sun turn back: he slaughtered his brother’s sons and served them to their father at a feast of reconciliation. From him the sons Agamemnon and Menelaus are the Atreidae, and the hereditary horror of the house passes to the next generation entire.