Sea Goddess

Thetis

Mother of the Greatest Warrior

The Nereid Who Terrified Zeus

Thetis was a Nereid, one of the fifty daughters of the old sea god Nereus, and she was so beautiful that both Zeus and Poseidon pursued her. But the Titan Prometheus revealed a prophecy that changed everything: Thetis was destined to bear a son greater than his father. If Zeus fathered her child, that child would be powerful enough to overthrow him, just as Zeus had overthrown Cronus. Terrified, Zeus immediately abandoned his pursuit and arranged for Thetis to marry a mortal, the hero Peleus, ensuring her son would be merely human in status even if extraordinary in ability.

The Wedding

The wedding of Peleus and Thetis was one of the most important events in Greek mythology. Every god and goddess attended except Eris (Discord), whose uninvited appearance and the golden apple she threw would eventually trigger the Trojan War. The gods brought magnificent gifts. It was the last great gathering of gods and mortals before the age of heroes gave way to the age of wars.

The River Styx

When Thetis bore her son Achilles, she was determined to make him immortal. She held the infant by his heel and dipped him in the River Styx, whose waters conferred invulnerability. Every part of his body that the water touched became impervious to harm. But the heel where she gripped him remained dry and vulnerable. This single unprotected spot would eventually kill the greatest warrior who ever lived.

A Mother's Grief

Thetis knew from prophecy that Achilles would die young if he went to Troy. She disguised him as a girl and hid him on the island of Skyros, but Odysseus tricked him into revealing himself. Throughout the Iliad, Thetis appears as a grieving mother who uses her influence with Zeus to help her son but knows she cannot save him. When Patroclus is killed and Achilles needs new armour, Thetis goes to Hephaestus and commissions the most magnificent armour ever created. She does everything a divine mother can do, and it is never enough.