In the Greek Mythology, Thétis (in Greek old Θέτις / Thétis ) is a Néréide (marine nymph), girl of Nérée and Doris (a Océanide). It should not be confused with Téthys, a paramount marine divinity.

Myth

It is raised by Héra. Zeus the Marie then against her liking with Shovelful, king of Phthie in Thessalie. In Iliade , it declares as follows:

“Only between the goddesses of the sea, soumise
has me With a mortal, Éacide Shovelful, and made entrer
In spite of me, with the bed of a mortal, who trails in his palais
A bitter old age. ”

According to another version, she is wished by Zeus and Poséidon, but when THEMIS predicts that she would give rise to a son stronger than her father., the two gods hasten to give it in marriage to a mortal

Chiron, which raised Pélée, explains to him then how to gain Thétis. This one, like Protée, can be metamorphosed to escape to him. Shovelful holds it firmly while it changes appearance then, tired, it finishes by him promising to marry it. At the time of its weddings, on the Olympe mount, Éris, goddess of the discord, furious not to be invited, lance an apple “with most beautiful”, which will cause the judgment of the mount Ida (see the article Pâris).

Several gods are indebted for him: Dionysos initially, which child takes refuge near it, continued by Lycurgue. It also collects Héphaïstos, when it is thrown top of the Olympe. Lastly, it saves Zeus of the chains when Athéna, Héra and Poséidon want to imprison it, by calling upon Briarée, one of the Hécatonchires, to deliver it.

Mother of seven wire, it plunges them in fire to demolish them of their nature mortal. Six do not resist it, Achille, the seventh, is saved by his/her father. Thereafter, it is devoted to her son, trying to preserve it (while plunging it in the Styx, according to certain traditions) and to prevent it from leaving to Troy, where it knows that he will die. Although she explained the choice to him which awaits it (to live old and unknown, or to die young person but glorious), she fails.

She continues to help her Trojan ground son: she intervenes with Zeus so that he grants the advantage to Troyens, when Achille withdraws itself in his tent. She then asks Héphaïstos to forge new weapons to him, after Hector removed old skin of Patrocle. She tries last once to dissuade it to face Hector, predicting a close death to him if it goes there, but once again, she does not reach that point.