Amphion and Zethus fit of madness and became a nightingale. After the deaths of Amphion and Zethus, Laius returned to Thebes and became king. Compare with Castor and Polydeuces (the Dioscuri) of Greece, and with Romulus and Remus of Rome. Plato, "Gorgias", 485e. Amphion and Zethus Amphion () and Zethus (, "Zēthos") were, in ancient Greek mythology, the twin sons of Zeus (or Theobus) by Antiope. They are important characters in one of the two founding myths of the city of Thebes, because they constructed the city's walls. Amphion and Zethus were the sons of Antiope, who fled in shame to Sicyon after
Europa (consort of Zeus) (by this case, niece of former) is also loved by Zeus, but because of the same name, gave some confusions to others. After arriving in Crete, Europa had three sons fathered by Zeus: Minos, Rhadamanthus, and Sarpedon, the three of whom became the three judges of the Underworld when they died. In Crete she married Asterion also rendered Asterius and became mother (or step-mother) of his daughter Crete. There were two competing myths relating how Europa came into the Hellenic world, but they agreed that she came to Crete (Kríti), where the sacred bull was paramount. In the more familiar