Niall Mór O'Neill
Niall Mór O'Neill was king of Tír Eoghain in 1364–1397, succeeding his father Aodh Reamhar. In 1375 he crushed the Anglo-Irish at Downpatrick, reducing the Earldom of Ulster to the country around Carrickfergus and restoring O'Neill power east of the Bann.
In 1395 he did homage to Richard II during the king's Irish expedition. A patron of poets who hailed him as king of Tara, he abdicated in 1397 and died in 1398. The Annals of Ulster style him high-king of Ulster and claimant to the kingship of Ireland.