Perseus
Son of Zeus and Danae, cast adrift in a chest with his mother and reared on Seriphus; sent by Polydectes for the Gorgon's head, he beheaded Medusa with the help of Hermes and Athena, rescued Andromeda, killed his grandfather Acrisius by accident and founded Mycenae. Ancestor of Heracles.
Why this wins its question: Separates the three layers of the Perseus story: Homer's genealogy, Hesiod's beheading, Apollodorus's full quest, with Pausanias's rationalised Argive variant kept as its own claim rather than blended in.
Key takeaways
- The full narrative is Apollodorus's (2.4.1–5); Hesiod gives only the beheading and its offspring, Homer only the parentage and the descendants.
- Apollodorus records two fathers for Perseus, Proetus and Zeus, before the story proceeds on the Zeus version.
- The mirror-shield, the winged sandals and the cap of Hades are all in Apollodorus; Ovid adds the sleeping serpent-hair.
- Pausanias preserves a version in which Medusa was a Libyan queen killed in war, with the head as a trophy.
Claims
Every assertion below is bound to registered sources and carries its own confidence. Weight them; do not treat the page as uniformly authoritative.
Apollodorus reports that Acrisius, warned by an oracle that his daughter's son would kill him, shut Danae in a brazen chamber; she was seduced "as some say, by Proetus", or Zeus came "in the shape of a stream of gold which poured through the roof into Danae's lap". Acrisius put mother and child in a chest and cast it into the sea; it washed ashore on Seriphus, where Dictys reared the boy (Apollod. 2.4.1). Homer settles the paternity: Zeus himself names "Danaë of the fair ankles, daughter of Acrisius, who bare Perseus, pre-eminent above all warriors" among his loves (Il. 14.319–320).
The quest was a trap. Polydectes, king of Seriphus, wanted Danae and could not reach her while Perseus was grown; he asked his friends for horses as a wedding gift, and when Perseus declared "he would not stick even at the Gorgon's head", ordered him to bring it. Guided by Hermes and Athena, Perseus took the single eye and tooth of the Phorcides to learn the way to the nymphs, who gave him winged sandals, the kibisis (a wallet) and the cap of Hades that made him unseen; Hermes gave him an adamantine sickle (Apollod. 2.4.2).
He beheaded Medusa asleep. Of the three Gorgons "Medusa alone was mortal"; "while Athena guided his hand and he looked with averted gaze on a brazen shield, in which he beheld the image of the Gorgon, he beheaded her", and Pegasus and Chrysaor sprang from her neck (Apollod. 2.4.2). Hesiod has the same birth: "when Perseus cut off her head, there sprang forth great Chrysaor and the horse Pegasus" (Theog. 280–281). Ovid's Perseus tells it himself: he saw "her horrid face" reflected on the shield "upon my left" and struck while "even her serpent-hair was slumber-bound" (Met. 4.706).
On the way back he found Andromeda, daughter of Cepheus of Ethiopia, exposed to a sea monster because her mother Cassiepea had boasted against the Nereids; he slew the monster on the promise of her hand, petrified the plotting Phineus, and on Seriphus turned Polydectes and his court to stone "each in the attitude which he happened to have struck". He returned the sandals, wallet and cap to Hermes, and "the Gorgon's head he gave to Athena", who set it in the middle of her shield (Apollod. 2.4.3).
The oracle came true by accident: competing in the pentathlon at Larissa, Perseus "in throwing the quoit struck Acrisius on the foot and killed him instantly". Ashamed to inherit Argos from the man he had killed, he exchanged kingdoms with Megapenthes and "reigned over Tiryns, after fortifying also Midea and Mycenae" (Apollod. 2.4.4).
Apollodorus traces the Perseids to Heracles: Perseus's son Electryon fathered Alcmena, and his son Sthenelus fathered Eurystheus, born a seven-month child through Hera's contrivance; a son Perses left with Cepheus is called ancestor of the kings of Persia (Apollod. 2.4.5). Homer likewise calls Eurystheus "son of Sthenelus, the son of Perseus" (Il. 19.116, 19.123).
Pausanias gives a rationalised Argive version, omitting "the miraculous": Medusa was a queen by Lake Tritonis who led the Libyans in war, "assassinated by night" in her camp facing Perseus's army, and Perseus "admiring her beauty even in death, cut off her head and carried it to show the Greeks" (Paus. 2.21.5). He also saw a picture of Perseus "carrying to Polydectes the head of Medusa" on the Acropolis (Paus. 1.22.7).
Questions answered
- Who were the parents of Perseus?
- Apollodorus reports that Acrisius, warned by an oracle that his daughter's son would kill him, shut Danae in a brazen chamber; she was seduced "as some say, by Proetus", or Zeus came "in the shape of a stream of gold which poured through the roof into Danae's lap". Acrisius put mother and child in a chest and cast it into the sea; it washed ashore on Seriphus, where Dictys reared the boy (Apollod. 2.4.1). Homer settles the paternity: Zeus himself names "Danaë of the fair ankles, daughter of Acrisius, who bare Perseus, pre-eminent above all warriors" among his loves (Il. 14.319–320). source
- Why was Perseus sent to kill Medusa?
- The quest was a trap. Polydectes, king of Seriphus, wanted Danae and could not reach her while Perseus was grown; he asked his friends for horses as a wedding gift, and when Perseus declared "he would not stick even at the Gorgon's head", ordered him to bring it. Guided by Hermes and Athena, Perseus took the single eye and tooth of the Phorcides to learn the way to the nymphs, who gave him winged sandals, the kibisis (a wallet) and the cap of Hades that made him unseen; Hermes gave him an adamantine sickle (Apollod. 2.4.2). source
- How did Perseus kill Medusa without looking at her?
- He beheaded Medusa asleep. Of the three Gorgons "Medusa alone was mortal"; "while Athena guided his hand and he looked with averted gaze on a brazen shield, in which he beheld the image of the Gorgon, he beheaded her", and Pegasus and Chrysaor sprang from her neck (Apollod. 2.4.2). Hesiod has the same birth: "when Perseus cut off her head, there sprang forth great Chrysaor and the horse Pegasus" (Theog. 280–281). Ovid's Perseus tells it himself: he saw "her horrid face" reflected on the shield "upon my left" and struck while "even her serpent-hair was slumber-bound" (Met. 4.706). source
- How did Perseus kill Acrisius?
- The oracle came true by accident: competing in the pentathlon at Larissa, Perseus "in throwing the quoit struck Acrisius on the foot and killed him instantly". Ashamed to inherit Argos from the man he had killed, he exchanged kingdoms with Megapenthes and "reigned over Tiryns, after fortifying also Midea and Mycenae" (Apollod. 2.4.4). source
- Is Perseus an ancestor of Heracles?
- Apollodorus traces the Perseids to Heracles: Perseus's son Electryon fathered Alcmena, and his son Sthenelus fathered Eurystheus, born a seven-month child through Hera's contrivance; a son Perses left with Cepheus is called ancestor of the kings of Persia (Apollod. 2.4.5). Homer likewise calls Eurystheus "son of Sthenelus, the son of Perseus" (Il. 19.116, 19.123). source