BattlefieldsBattle of Ardee
Early Medieval

Battle of Ardee

1159
Louth, Ireland
Also known as: Battle of Ath Fhirdiadh
Era
Early Medieval
Battle Type
Pitched Battle
Location
Louth, Ireland
Status
Unregistered
The Combatants

Who Fought

Defeated
Connacht (Ruaidrí Ua Conchobair)
VS
Victor
Muirchertach Mac Lochlainn (Ulster)
Outcome
Ulster victory; Mac Lochlainn temporarily supreme
The Battle

History & Significance

Mac Lochlainn of Ulster briefly achieved dominance over Ireland in the 1150s–1160s before Ruaidrí Ua Conchobair (Rory O'Connor) reasserted Connacht power. The contest between these two dynasties shaped the politics that led Diarmait Mac Murchada to seek Norman help — ultimately enabling the Norman invasion.

Forces Involved

Muirchertach Mac Lochlainn: c. 2,000–4,000 warriors. Ruaidrí Ua Conchobair: c. 2,000–4,000 warriors.

Questions & Answers

Frequently Asked Questions

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