Ariston appears to have died in Plato's childhood, although the precise dating of his death is difficult.• </ref> Perictione then married Pyrilampes, her mother's brother,• </ref> who had served many times as an ambassador to the Persian court and was a friend of Pericles, the leader of the democratic faction in Athens.• Plutarch, "Pericles", </ref> Pyrilampes had a son from a previous marriage, Demus, who was famous for his beauty.• Aristophanes, "Wasps", 97 </ref> Perictione gave birth to Pyrilampes' second son, Antiphon, the half-brother of Plato, who appears in "Parmenides".