Golden Fleece,
in Greek mythology, the fleece of the winged ram Chrysomallus. The ram was sent by the god Hermes to rescue Phrixus and Helle, the two children of the Greek king Athamas and his wife, Nephele. Athamas had grown indifferent to his wife and had taken Ino, the daughter of King Cadmus, for his second wife. Ino hated her stepchildren, especially Phrixus, because she wanted her own son to succeed to the throne. Realizing that her children were in grave danger because of the jealousy of their stepmother, Nephele prayed to the gods for help. Hermes sent her Chrysomallus, the winged ram, whose fleece was made of gold. The ram snatched the children up and bore them away on his back. Soaring into the air, he flew eastward, but as he was crossing the strait that divides Europe and Asia, Helle slipped from his back and fell into the water. The strait where she was drowned was named for her: the Sea of Helle, or the Hellespont. The ram safely landed Phrixus in Colchis, a country on the Black Sea that was ruled by King Aeëtes. There he was hospitably received and, in gratitude to the gods for saving his life, sacrificed Chrysomallus at the temple of the god Zeus. Phrixus then gave the precious Golden Fleece to Aeëtes, who placed it in a sacred grove under the watchful eye of a dragon that never slept.
Many years later the Argonauts, led by Phrixus's cousin the Greek hero Jason, recovered the Golden Fleece with the help of the daughter of King Aeëtes, the sorceress Medea, who out of love for Jason put the dragon to sleep.