Mnemosyne — Classical Greek Myth Library

After Zeus’s bolt fells Phaethon into the Eridanus and the Heliades begin their amber-weeping transformation into poplars, Ovid adds a male mourner: Cycnus, son of Sthenelus, related to Phaethon through kinship and bound to him by love. King among the Ligurians (or ruling that western people in the poetic map), he leaves his realm to lament beside the forbidden banks where Phaethon’s sisters already stiffen into trees. His voice thins with grief; white feathers mask his hair; a long neck stretches from his chest; scarlet webs join his fingers; wings cover his sides; a blunt beak replaces his mouth. He becomes a swan—a new bird that distrusts the sky and Zeus’s fire, preferring rivers and ponds, as if remembering the thunderbolt that killed his friend. Classical handbooks and later mythographers keep this Cycnus separate from the warrior Cycnus son of Ares whom Heracles slew, and from Poseidon’s son Cycnus killed by Achilles near Troy. The Ligurian swan is Phaethon’s aftermath aetiology: why the swan haunts water and shuns the height where solar fire and divine anger meet. This entry isolates that metamorphosis under an Ovid label so the catalogue does not conflate three homonyms.