Theia ("the divine") was the Titaness who, with her brother-husband Hyperion, gave birth to the heavenly lights — Helios, Selene, and Eos. Her name signifies divinity itself; she was the mother of brightness, and Pindar in the fifth century called her "queen of light, mother of the sun," addressing her with hymnic dignity that suggests at least some local cult, perhaps in connection with mining (gold and silver, as bright metals, were said to be hers).
Before thisHyperion

Next on the wallHelios
Curator’s note
What the sources say, and what later tradition added. The sources for this bay
Hesiod, Theogony 135, 371–374; Pindar, Isthmian 5.1–3. Pindar's invocation of Theia as the divine source of light (and, by extension, of the bright metals that make men prosperous) is the principal extended treatment; she is otherwise a genealogical figure.
Kin in the sources
Each tie is quoted from the entry that states it.
Consort ofHyperionwith her brother-husband Hyperion, gave birth to the heavenly lights
Sibling ofHyperionwith her brother-husband Hyperion, gave birth to the heavenly lights
Parent ofHeliosgave birth to the heavenly lights — Helios, Selene, and Eos
Parent ofSelenegave birth to the heavenly lights — Helios, Selene, and Eos
Parent ofEosgave birth to the heavenly lights — Helios, Selene, and Eos
When the sources speak
Dated witnesses for The Titans and Their Children. A date marks when the evidence was written down, not when the belief began. The whole timeline
- c. 1600–1100 BCE
- Mycenaean palace tablets in Linear B record offerings and divine names, but little continuous myth.
- c. 1100–800 BCE
- Post-palatial oral traditions and changing cult landscapes precede the surviving alphabetic epics.
- late 8th–7th centuries BCE
- The Iliad, Odyssey, Hesiodic Theogony and Works and Days give influential but non-exclusive divine orders.
- 7th–6th centuries BCE
- Homeric Hymns, lyric poetry, colonization, and local sanctuary traditions multiply regional narratives.
- 6th–5th centuries BCE
- Orphic, Pythagorean, and mystery materials develop alternative cosmogonies and afterlife doctrines.
- 5th century BCE
- Athenian tragedy and comedy recast heroic houses and divine justice for civic audiences.
- 4th century BCE
- Philosophers, antiquarians, and local historians interpret or criticize inherited myth.
- 323–31 BCE
- Hellenistic poets and scholars systematize variants across an enlarged Greek world.