Thetis.
An immortal mother’s mortal son
Thetis: Greek Sea Goddess and Mother of Achillesis the sea goddess who tries to protect her son while knowing that he is mortal. Her appearances in the bring a mother’s grief into the politics of and the violence of .
More than a myth.
Thetis and Peleus
The describes Peleus winning by holding her while she changes shape. Their wedding draws the gods and belongs to the wider story leading toward ’s judgment. The union joins an immortal sea figure to a mortal king, producing a child whose parents do not share the same protection from death.
Thetis in the Iliad
When withdraws from battle, petitions for his honor. After dies, she brings her son new armor made by . She can obtain divine assistance but cannot simply cancel his destined death. Her interventions therefore expose the limits of even an immortal parent’s power over a human child’s life.
Thetis is not Tethys
lists among the , daughters of Nereus and Doris. , whose name looks similar in English, is an original and the partner of . The difference matters for the of . The familiar story of dipping him in belongs to later tradition and is not narrated in the .
Questions about Thetis
Who is Achilles’s mother?
, a sea goddess. His father is the mortal Peleus.
Could Thetis make Achilles immortal?
The treats as mortal despite his mother’s divinity. Later accounts develop different childhood attempts to protect him, including the familiar tradition.
It’s a family affair.
Thetis
The sea & the protection of AchillesThe stories of Thetis.
Ancient voices.
Enduring stories.
Myths have many tellings. These are the ancient works behind this profile, linked to freely available English translations.
Theogony
Lines 240–264
Library
Book 3.13.4–6
Iliad
Book 1.348–530
Iliad
Book 18 · Thetis and Hephaestus