BattlefieldsBattle of Lough Swilly
Early Medieval

Battle of Lough Swilly

817
Donegal, Ireland
Also known as: Battle of Fid Eoin
Era
Early Medieval
Battle Type
Pitched Battle
Location
Donegal, Ireland
Status
Unregistered
The Combatants

Who Fought

Defeated
Cenél nEógain
Forces
Cenél nEógain: c. 400–1,200 warriors.
VS
Victor
Cenél Conaill
Forces
Cenél Conaill: c. 400–1,200 warriors
Outcome
Cenél Conaill victory in Donegal dynastic struggle
The Battle

History & Significance

Internal Uí Néill conflict between the northern branches — Cenél Conaill and Cenél nEógain — who alternated in holding the kingship of the north. These battles shaped the political geography of Ulster for centuries.

Questions & Answers

Frequently Asked Questions

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