Poseidon's Spear

Having passed by the Island of Thrinacia, where are the kine of the Sun, they came to Corcyra, the island of the Phaeacians, of which Alcinous was king. But when the Colchians could not find the ship, some of them settled at the Ceraunian mountains, and some journeyed to Illyria and colonized the Apsyrtides Islands. But some came to the Phaeacians, and finding the Argo there, they demanded of Alcinous that he should give up Medea. He answered, that if she already knew Jason, he would give her to him, but that if she were still a maid he would send her away to her father. However, Arete, wife of Alcinous, anticipated matters by marrying Medea to Jason; hence the Colchians settled down among the Phaeacians and the Argonauts put to sea with Medea.

Apollodorus, Library I. 9