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
Leda and the Swan (Leonardo) Leda and the Swan (Leonardo) The story of Leda and the Swan was the subject of two compositions by Leonardo da Vinci from perhaps 1503–10. Neither survive as paintings by Leonardo, but there are a number of drawings for both by him, and copies in oils, especially of the second composition, where Leda stands. Leonardo began making studies in 1504 for a painting, apparently never executed, of Leda seated on the ground with her children. Three sketches of Leda by Leonardo exist: A completed copy of "Leda and her Children" by Giampietrino is kept at Staatliche Museen, Kassel (c.1520, oil