The Gorgons were a group of three sisters who were turned into monsters by the goddess Athena.
The Gorgons were three monstrous women whose names were Stheno, Euryale, and the only mortal among the three, Medusa. Medusa was killed by Perseus by cutting off her head. Her head was later used by Perseus to kill the sea monster, Keto. Zeus had created his shield, Aegis, on oracular advise so he could win the war against the Titans. He defeated the gorgon Aex (or Aix), who was either the son of Helios, or alternatively the son of Typhon and Echidna. He used the skin of a goat and fixed upon it the head of the gorgon Aex. It was said Zeus gave Aegis to his daughter Athena once the war was over.
In the beginning Medusa was a fair maiden and a priestess of the goddess of Athena. This meant that she could not marry so she could devote all her energy to Athena. When in the temple of Athena, Poseidon came down from Olympus and took notice of Medusa. Poseidon had raped Medusa, taking her virginity, enraging the goddess. Athena, knowing that she could not take anger upon a god directed her wrath towards Medusa. Athena became outraged that this event had happened in her temple and cursed Medusa without warning, to forever become the first gorgon. Medusa and her two sisters, Stheno and Euryale, were turned into the three Gorgons by Athena. The transformation was a punishment. The result was a monstrous demon with slithering serpents as hair and a gaze that could turn a man to stone.
Medusa was the youngest Gorgon among the three, as well as the most beautiful, which is the reason Poseidon noticed her, and is also the most famous. Medusa is also the only one with the power to turn her victims into stone, being the envy of Euryale. Her parents were Keto and Phorcys. The Gray Sisters and Echidna are her other sisters besides Stheno and Euryale
It was said that Euryale was the middle among the sisters
The immortal sister of Medusa. She was remembered as the most vicious of the Gorgon sisters. Stheno was said to be the eldest of her sisters.