In Greek mythology, Tyro was the daughter of Salmoneus and
married Cretheus, but loved Enipeus. She gave birth to Pelias and Neleus, the
twin sons of Poseidon. With Cretheus she had Aeson, Pheres, and Amythaon. Her
father, Salmoneus, was the brother of Athamas and Sisyphus. Tyro was married to
Cretheus but loved Enipeus, a river god. She pursued Enipeus, who refused her
advances. One day, Poseidon, filled with lust for Tyro, disguised himself as
Enipeus and from their union were born Pelias and Neleus, twin boys. Tyro
exposed her sons on a mountain to die, but they were found by a herdsman who
raised them as his own.
When they reached adulthood, Pelias and Neleus found Tyro and
killed her stepmother, Sidero, for having mistreated their mother. Sidero hid
in a temple to Hera but Pelias killed her anyway, causing Hera's undying hatred
of Pelias – and her glorious patronage of Jason and the Argonauts in their long
quest for the Golden Fleece. Pelias' half brother Aeson, the son of Tyro and
Cretheus, was the father of Jason. Soon after, Tyro married Sisyphus and had
two children. It was said that their children would kill Salmoneus, so Tyro
killed them in order to save her father.
