Jason
The expedition leader sent to Colchis by the one-sandal oracle who wins the Fleece through collective aid.

Overview
Jason’s first-release story is not a lone-hero biography. He assembles a crew, negotiates with foreign kings and relies on Medea’s charm and tactics; after gaining the Fleece, he personally kills the lured Apsyrtus. Success and responsibility therefore remain on the same route.
Relationships
- Argonaut Expeditionleads the expedition
Jason leads the expedition from Iolcus to Colchis and back.
- Peliascommands recovery of the Fleece
After recognising the one-sandal oracle, Pelias assigns Jason the voyage to Colchis.
- Iolcusarrives with one sandal
Jason enters Iolcus with one sandal, embodying the warning.
- Hypsipylereceives and bonds with
Hypsipyle chooses to receive Jason, allowing the crew to remain safely.
- Aeetespresents Pelias’ demand
Jason explains his imposed errand and asks Aeetes for the Fleece.
- Yoking the Fire-Breathing Bullsundertakes and completes
Jason accepts Aeetes’ terms and enters the Plain of Ares.
- Heraplans to secure Medea’s aid
Hera judges that the Fleece cannot be gained without Medea and seeks intervention from the love goddess.
- Athenajoins the search for a solution
Athena consults with Hera on how Jason can survive the Colchian problem.
- Medeagives charm and strategy
After deliberation, Medea personally gives the charm and explains the full method of the trial.
- Yoking the Fire-Breathing Bullscompletes
Jason yokes, ploughs, sows and defeats the warriors rising from the earth.
- Medeaguides to the Fleece grove
Medea leads Jason into Ares’ grove at night to face the dragon.
- Golden Fleecetakes from the oak
Once the dragon is subdued, Jason removes the Fleece from the oak and carries it to Argo.
- Apsyrtusambushes and kills
Jason ambushes Apsyrtus at the meeting arranged through Medea.
- Circepurifies
Circe performs purification for Jason from the pollution of Apsyrtus’ killing.
- Aesonfather of
Aeson is the father of Jason.
- Chironraises
Pindar connects Jason's upbringing with Chiron's care.
- Atalantagives a spear
In Apollonius’ account, Atalanta had given Jason a spear; whether she sails as a crew member depends on the ancient source being followed.
Story appearances
- The ArgonautsJason in the Argonaut expedition
Jason enters this story through the Argonaut expedition; other versions are handled where their own episodes call for them.
Ancient sources
MythWeave distinguishes ancient-source evidence from later adaptations and modern interpretation.
- Apollonius Rhodius, Argonautica, Book 1.1–22: one-sandal oracle, Pelias and the Fleece command
- Apollonius Rhodius, Argonautica, Book 1.23–233: expedition catalogue and individual skills
- Apollonius Rhodius, Argonautica, Book 3.210–438: Aeetes receives Jason and imposes the deadly test
- Apollonius Rhodius, Argonautica, Book 4.6–211: Medea flees, the dragon is subdued and the Fleece is taken
- Apollonius Rhodius, Argonautica, Book 4.294–551: Apsyrtus pursues, is lured and killed
- Pindar, Pythian 4, Lines 125–299: one-sandal oracle, Chiron and Pelias’ Fleece bargain
- Apollonius Rhodius, Argonautica, Book 1.306–558: launch, sacrifice, song and departure
- Apollonius Rhodius, Argonautica, Book 1.609–909: Lemnos, Hypsipyle and departure
- Apollonius Rhodius, Argonautica, Book 1.910–1152: Cyzicus, mistaken battle and mourning
- Apollonius Rhodius, Argonautica, Book 1.1153–1328: Hylas lost, Heracles searching and left behind
- Pseudo-Apollodorus, Bibliotheca, 1.9.16–19: one sandal, Lemnos, Cyzicus and variants of Heracles’ departure
- Apollonius Rhodius, Argonautica, Book 2.1030–1285: sons of Phrixus, Fleece history and arrival in Colchis
- Apollonius Rhodius, Argonautica, Book 3.6–110: Hera, Athena, Aphrodite and Eros plan
- Apollonius Rhodius, Argonautica, Book 3.471–1162: Medea deliberates, meets Jason and provides charm and instructions
- Apollonius Rhodius, Argonautica, Book 3.1163–1407: Hecate rite, fire-breathing bulls and earthborn warriors
- Apollonius Rhodius, Argonautica, Book 4.552–981: Zeus’ storm, Circe’s purification, Sirens and strait hazards
- Apollonius Rhodius, Argonautica, Book 4.982–1169: Colchian reclamation and the marriage decision
- Apollonius Rhodius, Argonautica, Book 4.1170–1637: Syrtes, carrying Argo and Triton’s guidance
- Apollonius Rhodius, Argonautica, Book 4.1638–1781: Talos, Anaphe and return to Pagasae
- Apollonius Rhodius, Argonautica, Book 2.528–647: dove test, Clashing Rocks and Athena pushes Argo