Metis

Goddess of wisdom and prudence. Metis was the daughter of Oceanus and Tethys.

Metis became the first wife of Zeus. Zeus persuaded the goddess to give Cronus an emetic, causing Cronus to vomit up Zeus' brothers and sisters. When Zeus imprisoned his father in Tartarus, Uranus and Gaea warned him that a second child of Metis would be a son and that he would in turn overthrow Zeus. Metis, who was pregnant at the time, was swallowed up by her husband Zeus to prevent this fate from happening. Later, when Metis was due to deliver, either Hephaestus or Prometheus split Zeus' head open with an axe. Athena sprang out of Zeus' head, in full armour.

Her daughter inherited Metis' role as goddess of wisdom and one of Athena's epithets was Polymetis (wisdom). Metis remained in her husband's head and since she was the goddess of wisdom, Zeus continued to receive shrewd advice from Metis.

According to the Pelasgian Creation Myth, Metis was a Titaness who ruled the planet Mercury with the Titan Coeus.