Badbchaid was a legendary High King of Ireland in the 6th century BC. He overthrew Úgaine Mor, but ruled for only a day and a half before he was killed by Úgaine's son, Lóegaire Lorc. 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. ... (7th century BC - 6th century BC - 5th century BC - other centuries) (600s BC - 590s BC - 580s BC - 570s BC - 560s BC - 550s BC - 540s BC - 530s BC - 520s BC - 510s BC - 500s BC - other decades) (2nd millennium BC - 1st millennium BC - 1st millennium AD) Events Cyrus the Great conquered many... Úgaine Mor was a legendary High King of Ireland of the 7th century BC. He was the foster-son of Macha Mong Ruad. ...

Úgaine Mor was a legendary High King of Ireland of the 7th century BC. He was the foster-son of Macha Mong Ruad. ... 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. ...