The legend stated that the Atreides family came from a noble family that originated in Greece on Earth, and that they rose to prominence during the Butlerian Jihad. House Atreides specifically claimed descent from King Agamemnon, a son of Atreus, in Greek mythology. The descendants of Atreus are called "Atreides" (plural "Atreidai", Latinized as "Atreidae") in the Greek language. This Royal House included many significant figures in Greek myth.