Aengus Olmucada, son of Fiacha Labhrainne, was a legendary High King of Ireland. During his father's reign, about 250 years after the arrival of the Milesians in Ireland, Aengus helped him subdue Britain. He became High King himself when he overthrew his father's killer, Eochaid Mumho. The office of High King of Ireland (Irish: Ard Rí Érenn) was in origin a pseudohistorial construct of the eighth century that placed a king of all Ireland atop the fragmented pyramid of kingship that actually existed at that time. ... In Irish mythology the Milesians or Sons of Míl Espáine were the final inhabitants of Ireland, representing the Goidelic Celts. ...

Pigs were large in Ireland during his reign. He fought fifty battles against the Fir Bolg, the Cruithne and the people of the Orkney islands. He was ultimately overthrown by Eochaid Mumho's son Enna Airgtheach. In Irish mythology and pseudohistory, the Fir Bolg (Fir Bholg, Firbolg, Irish men of Builg) were one of the races that inhabited Ireland before the coming of the Gaels. ... See: the asteroid 3753 Cruithne said (incorrectly) by some to be a moon Cruithne, the ancient Brythonic tribe sometimes identified with the Picts This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... The Orkney Islands form one of 32 unitary council regions in Scotland, and are a Lieutenancy Area. ...

The High Kingship of Ireland was a pseudohistorical construct of the eighth century AD, a projection into the distant past of a political entity that did not become reality until the ninth century. ... Signature page from the Annals of the Four Masters Entry for A.D. 432 The Annals of the Four Masters or the Annals of the Kingdom of Ireland by the Four Masters are a chronicle of medieval Irish history. ... Seathrún Céitinn, known in English as Geoffrey Keating, was a 17th century Irish clergyman, poet and historian. ...