Gorgo was a Spartan woman and wife to King Leonidas I. She was the daughter and the only known child of Cleomenes I, Leonidas' half-brother and King of Sparta. Gorgo was also the mother of King Pleistarchus, her only son with King Leonidas I. She is notably one of the few female historical figures actually named by Herodotus, and is depicted in sources as intelligent and wise. Her birth date is uncertain, but based on Herodotus' dating, it is most likely to have been between 518 and 508 BC.