Tiresias

In Greek mythology, Tiresias (/taɪˈriːsiəs/; Greek: , Teiresias) was a blind prophet of Apollo in Thebes, famous for clairvoyance and for being transformed into a woman for seven years. He was the son of the shepherd Everes and the nymph Chariclo. Tiresias participated fully in seven generations at Thebes, beginning as advisor to Cadmus himself.

Eighteen allusions to mythic Tiresias, noted by Luc Brisson, fall into three groups: one, in two episodes, recounts Tiresias' sex-change and his encounter with Zeus and Hera; a second group recounts his blinding by Athena; a third, all but lost, seems to have recounted the misadventures of Tiresias.

How Tiresias obtained his information varied: sometimes, like the oracles, he would receive visions; other times he would listen for the songs of birds, or ask for a description of visions and pictures appearing within the smoke of burnt offerings, and so interpret them.

On Mount Cyllene in the Peloponnese, as Tiresias came upon a pair of copulating snakes, he hit the pair with his stick. Hera was displeased, and she punished Tiresias by transforming him into a woman. As a woman, Tiresias became a priestess of Hera, married and had children, including Manto, who also possessed the gift of prophecy. According to some versions of the tale, Lady Tiresias was a prostitute of great renown. After seven years as a woman, Tiresias again found mating snakes; depending on the myth, either she made sure to leave the snakes alone this time, or, according to Hyginus, trampled on them. As a result, Tiresias was released from his sentence and permitted to regain his masculinity. This ancient story is recorded in lost lines of Hesiod.

...
Wikipedia