Euryale

Euryale (エウリュアレ, Euryuare) is a Gorgon that killed the Silver Saint Triangle Noesis. Aiolia goes to Chuang-Yan province to defeat her, but instead he allows that Silver Saint's student, Lynx Retsu, to kill the Gorgon himself.

Mythology
Euryale in Greek mythology, was the second eldest one of the Gorgons, three vicious sisters with brass hands, sharp fangs, and hair of living, venomous snakes. She, like her sisters, was able to turn any creature to stone with her gaze. She and her sister Stheno were immortal, but Medusa, the last of the sisters, was mortal.

They were daughters of primordial sea god and goddess Phorcys and Ceto, who personified the dangers of the sea. In many stories, Euryale is noted for her bellowing cries, particularly in the tale of Medusa's death at Perseus' hands.