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 by many to Giulio Campagnola, shows a love-making scene, but there Leda's attitude is highly ambiguous. Palumba made another engraving, perhaps in about 1512, presumably influenced by Leonardo's sketches for his earlier composition, showing Leda seated on the ground and playing with her children. There were also significant depictions in the smaller decorative arts, also private media. Benvenuto Cellini made a medallion, now in Vienna, early in his career, and Antonio Abondio one on the obverse of a medal celebrating a Roman courtesan. Leonardo da Vinci began making studies in 1504 for a painting, apparently never executed, of Leda seated