Twelve Olympians
Phrixus settled in the house of Aeetes, son of Helios the sun god. He hung the Golden Fleece preserved from the ram on an oak in a grove sacred to Ares, the god of war and one of the Twelve Olympians. The fleece was guarded by a never-sleeping dragon with teeth that could become soldiers when planted in the ground. The dragon was at the foot of the tree on which the fleece was placed.