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 on the ground with her children. In 1508 he painted a different composition of the subject, with a nude standing Leda cuddling the Swan, with the two sets of infant twins (also nude), and their huge broken egg-shells. The original of this is lost, probably deliberately destroyed, and was last recorded in the French royal Château de Fontainebleau in 1625 by Cassiano dal Pozzo. However it is known from many copies, of which the earliest are probably the "Spiridon Leda", perhaps by a studio assistant and now in the Uffizi, and the one at Wilton House in England (illustrated). Also