Champion of the Fir Bolg
Sreng mac Sengainn was the greatest warrior of the Fir Bolg, and he struck one blow that changed everything.
Before the First Battle of Mag Tuired — the battle between the Fir Bolg and the incoming Tuatha Dé Danann — Sreng served as the Fir Bolg’s envoy. He met the Tuatha Dé’s envoy, Bres mac Elatha, and the two warriors compared weapons. Sreng showed Bres the Fir Bolg’s swords: heavy-bladed, edge-sharpened, built for brutal direct impact. Bres took them back for the Tuatha Dé to examine. They were alarmed enough to ask for a delay before the battle. The delay was granted. The battle came anyway.
In the fighting, Sreng met Nuada — king of the Tuatha Dé Danann — in single combat. Nuada survived. Sreng’s sword took his arm.
That wound disqualified Nuada from kingship, because Irish law required the king to be physically unblemished. With Nuada unable to reign, the Tuatha Dé chose Bres mac Elatha as king. Bres was a catastrophic ruler whose misrule eventually forced the Second Battle of Mag Tuired. The Second Battle destroyed the Fomorians as a power. All of it — the misery under Bres, the rise of Lugh, the great final war — flows from the single sword-blow Sreng landed on Nuada’s arm.
After the Fir Bolg lost the First Battle, Sreng was offered any province of Ireland as his people’s territory. He chose Connacht — the western province. The Fir Bolg settled there, and their descendants remained in Connacht into the early medieval period.
He was the son of Sengann mac Dela, the Fir Bolg king of Munster.
Key facts about Sreng
- Names: Sreng mac Sengainn
- Rules over: No formal domain; champion of the Fir Bolg
- Weapons: Heavy-bladed Fir Bolg sword
- Animals: Not recorded
- Other Symbols: The severed arm of Nuada; Connacht (his people’s territory after the defeat)
- Parents: Sengann mac Dela (father)
- Siblings: Not recorded
- Spouse: Not recorded
- Children: Not recorded
- Greek equivalent: Hector (the champion of the defeated people whose single act shapes the entire war)
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