Atreus was a stubborn village leader who hated and feared a Cyclops who had diverted a nearby river to irrigate Hera's Sacred Vineyard. He was taught the error of his ways by Hercules.
Background
In Greek mythology, Atreus (/ˈeɪtriəs/ AY-tri-əs, /ˈeɪtruːs/ AY-trooss;[1] from ἀ-, "no" and τρέω, "tremble", "fearless", Greek: Ἀτρεύς) was a king of Mycenae in the Peloponnese, the son of Pelops and Hippodamia, and the father of Agamemnon and Menelaus. Collectively, his descendants are known as Atreidai or Atreidae