Son of the Sun, Husband of Ériu
Mac Gréine — “son of the sun” — was the husband of Ériu, the most important of the three sovereignty goddesses, and the king whose name connected him to the most powerful force in the sky. His wife is the goddess whose name became Ireland’s own: Éire.
When the Milesians landed in Ireland, Ériu came to meet them. She told them the island would belong to them forever, and asked only that it bear her name. The Milesian poet Amairgen agreed, and Ireland became Éire. Mac Gréine, the sun’s son, was her husband — the king who stood beside the goddess who named a country.
He shared the kingship with Mac Cécht and Mac Cuill, each paired with one of the three sovereignty goddesses in a divine unit that governed Ireland’s final Tuatha Dé era. He was killed at the Battle of Tailtiu when the Milesians defeated the Tuatha Dé Danann — the sun-king falling as the divine age ended.
Key facts about Mac Gréine
- Names: Mac Gréine (“Son of the Sun”)
- Rules over: Joint king of the Tuatha Dé Danann; the sun’s authority in the divine kingship trio
- Weapons: Not recorded
- Animals: Not recorded
- Other Symbols: The sun
- Parents: Not recorded
- Siblings: Mac Cécht, Mac Cuill (co-kings)
- Spouse: Ériu (the sovereignty goddess whose name became Ireland’s own)
- Children: Not recorded
- Greek equivalent: Apollo (the sun as royal and divine force); Helios
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