Myth Library · Dynastic Murder And Transformation
The Death of Hyperion in Diodorus
1 source witness · 1 source-scoped variant · reviewed 2026-08-30
Diodorus reports an Atlantic Libyan tradition in which Basileia marries Hyperion, her brothers murder him and the young Helios, Selene dies in grief, and the children become Sun and Moon.
Canonical narrative
Diodorus introduces a tradition about peoples living on the Ocean shore of Libya. Uranus leaves many children, and his eldest daughter Basileia succeeds to royal power. Wishing for heirs, she marries her brother Hyperion, whom she loves. Their children are Helios and Selene, admired for beauty and character.
The brothers of Basileia become jealous and fear that Hyperion will divert the kingship to himself. They conspire and kill him. They then cast the child Helios into the river Eridanus and drown him. Selene, devoted to her brother, throws herself from a roof when the crime becomes known.
Basileia searches along the river until exhaustion overcomes her. In a vision Helios tells her not to mourn. The guilty Titans will be punished, while he and Selene will pass into immortal natures. What people had called the holy fire in heaven will bear the name Helios, and the heavenly body called mene will take Selene’s name. Basileia later disappears amid storm, thunder, and lightning and receives divine honors in the reported tradition.
This is not Hesiod’s genealogy with added detail. Eos is absent, the mother is Basileia, Hyperion is a royal husband who is murdered, and the Sun and Moon arise through posthumous transformation. Diodorus’s source frame and rationalizing interests must remain attached to the telling.
Episodes in this myth
Episode 1
Basileia chooses Hyperion and bears two children
Basileia chooses Hyperion as royal husband and bears Helios and Selene.
Episode 2
The jealous brothers kill Hyperion and Helios
Basileia’s jealous brothers murder Hyperion and drown the young Helios.
Episode 3
Helios and Selene become celestial divinities
A vision announces Helios and Selene as the future names of Sun and Moon.
Participants and roles
Hyperion
Royal husband murdered by Basileia’s brothers
Diodorus Library 3.57.2-6: Hyperion is royal husband murdered by Basileia’s brothers.Basileia
Ruling sister-wife and mother of Helios and Selene
Diodorus Library 3.57.2-6: Basileia is ruling sister-wife and mother of Helios and Selene.Helios
Child drowned and transformed into the Sun
Diodorus Library 3.57.2-6: Helios is child drowned and transformed into the Sun.Selene
Child who dies in grief and becomes the Moon
Diodorus Library 3.57.2-6: Selene is child who dies in grief and becomes the Moon.Brothers of Basileia
Jealous conspirators who kill Hyperion and Helios
Diodorus Library 3.57.2-6: Basileia’s brothers are the jealous conspirators who kill Hyperion and Helios.Source-scoped variants
Diodorus’s dynastic transformation
The Atlantic Libyan report gives Hyperion a royal marriage, murder, and posthumously transformed children.
What differs: Basileia replaces Theia, Eos is absent, Hyperion is murdered, and the children become celestial divinities after death.
Roman Republican · Ancient LibyaSource witnesses
EXPLICIT PRIMARY · Reviewed
Library of History, Book III and Book V selections
Diodorus Siculus; translated by C. H. Oldfather · 1935
Book 3 · Chapter 57 · Section 2-6
Diodoran Atlantic Libyan account; the exact passage controls this version and its differences.
Open reviewed source