The O'Neill dynasty is a group of families that have held prominent positions and titles. The O'Neills take their name from Niall Glúndub, an early 10th century High King of Ireland from the Cenél nEógain. Confusion then arises because the Cenél nEógain, descendants of Eógan mac Néill, were a branch of the Uí Néill dynasty who took their name from Niall of the Nine Hostages, a legendary 5th century King of Tara. The Uí Néill were in turn a branch of the Connachta, descendants of the legendary Conn of the Hundred Battles, son of Fedlimid Rechtmar, son of Tuathal Techtmar.
Read more about O'Neill Dynasty: Origins, O'Neills of Tyrone, O'Neills of Clanaboy, O'Neills of The Fews, The MacShane O'Neills, The Caribbean O'Neills, The O'Neills Today, Coats of Arms, Anrothan Kindred, See Also, References and Sources