Celtic military leader Brian Boru (ca. 940-1014) was the first king of a united Ireland. Through shrewd military acumen Brian Boru became the first king of a united Ireland, in an era when the isle was little more than a verdant home to Celtic peoples...

c. 941-1014 Irish king who briefly united his land against the Danes. In 999 he won the capital city of Dublin, and in 1002 became king of all Ireland. By then more than 60 years old, he turned his attention from battle to administration, seeking to...

Brian mac Cennétig (c. 941–23 April 1014), called Brian Bóruma (English: Brian Boru, Irish: Brian Boraime), was an Irish king who overthrew the centuries-long domination of the Kingship of Ireland by the Uí Néill. Building on the achievements...