For ten points, who was this man, the former friend of Medea, who brought his Argonauts on a quest for the Golden Fleece?
This mythological figure is sometimes believed to have founded Ljubljana, the capital of Slovenia, after slaying a dragon there on his way home from his most famous quest. Hercules left this man's side after Hylas drowned, and this man fell in love with the daughter of Aeetes, who helped him deal with the (*) Khalkotauroi and men who sprung up from dragon's teeth. That woman helped him escape by killing her brother Apsyrtus and throwing pieces of him into the sea, and she was thanked for her help when this man became engaged to Creusa, whom she killed and fled away in Helios' chariot. For ten points, who was this man, the former friend of Medea, who brought his Argonauts on a quest for the Golden Fleece?
This mythological figure is sometimes believed to have founded Ljubljana, the capital of Slovenia, after slaying a dragon there on his way home from his most famous quest.
{Jason}