Atreid noun1 •Any of the family and descendants of the mythical Mycenaean king Atreus, including either of his sons Menelaus and Agamemnon, who both feature in the Iliad.Ancient tradition said that Mycenae was founded by the Perseid dynasty and that the Atreids (Pelops, Atreus, Agamemnon) were outsiders. — 1998 formsAtreids
