Ulaidh

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Ulaid was a Gaelic over-kingdom in north-eastern Ireland during the Middle Ages.

Establishment

January 151: Ulaid was a Gaelic over-kingdom in north-eastern Ireland during the Middle Ages made up of a confederation of dynastic groups.

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Took place during the late 12th century, when Anglo-Normans gradually conquered and acquired large swathes of land in Ireland.

January 1178: Ulaid ceased to exist after its conquest in the late 12th century by the Anglo-Norman knight John de Courcy.
January 1178: Anglo-Norman knight John de Courcy conquered Ulster in 1177.

January 451: The original domain of Ulaidh is greatly reduced by the formation of Ailech (in the west) and Airghialla (in central region).
January 451: Ailech kingdom split from Ulaidh (Ulster).
January 609: The kingdom reached its peak under Áedán mac Gabráin (574-608). During his reign the power and influence of Dál Riata grew. He led an expedition to Orkney and the Isle of Man, and attacked the British kingdom of Strathclyde.
January 643: During the reign of Domnall Brecc, the Dál Riata kingdom suffered serious defeats in Ireland and Scotland. Domnall Brecc was a king of Dál Riata, a Gaelic kingdom that encompassed parts of western Scotland and northeastern Ireland. The defeats marked the end of Dál Riata's "golden age."

January 1178: Anglo-Norman knight John de Courcy conquered Ulster in 1177.
January 1178: Ulaid ceased to exist after its conquest in the late 12th century by the Anglo-Norman knight John de Courcy.