Henry O'Neill ( Irish: ''Anrí Ó Néill'') was a

king of Tyrone This article lists the rulers of Tyrone (Irish: ''Tír Eoghain'') from 1185 to 1616. They are listed from their date of accession to date of death, unless otherwise stated. Prior to this, the ruling dynasty - the Cenél nEógain - were most of th ...

and lord of Clandeboye in

medieval Ireland Ireland in the Middle Ages may refer to: * History of Ireland (400–800), Ireland in the early Middle Ages *History of Ireland (800–1169), Ireland in the high Middle Ages *History of Ireland (1169–1536), Ireland in the late Middle Ages See a ...

. He was the son of Brian O'Neill, and a grandson of

Hugh Boy O'Neill Hugh Boy O'Neill (Irish: ''Aed Buide Ó Néill'') was the last ruler of the Cenél nEógain to be styled as king of Ailech and was the eponymous ancestor of the Clandeboye O'Neill's in medieval Ireland. The son of Donnell Og O'Neill, he succeede ...

. O'Neill succeeded his kinsman Donnell O'Neill as king of Tyrone in 1325. In 1338 O'Neill as part of a peace treaty was granted a war-ravaged region of south Antrim, from where would be founded the lordship of Clandeboye. In 1345 the Justiciar of Ireland, Ralph de Ufford, deposed O'Neill as king of Tyrone in part for his role in the Anglo-Norman rebellion against

William Donn de Burgh, 3rd Earl of Ulster William de Burgh, 3rd Earl of Ulster and 4th Baron of Connaught (; ; 17 September 1312 – 6 June 1333) was an Irish noble who was Lieutenant of Ireland (1331) and whose murder, aged 20, led to the Burke Civil War. Background The grandson ...

. In his place de Ufford installed

Áed Remar O'Neill Aodh ( , , ; sga, Áed) is an Irish and Scottish Gaelic male given name, originally meaning "fire".The modern word ''aodh'' meaning 'inflammation' or as a phrase with the Irish word for 'itch' (''tochas''), giving ''aodh thochais'', 'burning itc ...

, son of Donnell. O'Neill died in 1347 and was succeeded in the lordship of Clandeboye by his son

Muirchertach Ceannfada O'Neill Muirchertach Ceannfada O'Neill (Irish language, Irish: ''Muirchertach Ceannfada Ó Néill''), also known as Murtagh O'Neill and Maurice O'Neill, was a List of rulers of Clandeboye, lord of Clandeboye in medieval Ireland. He succeeded his father, H ...

References

Clandeboye 14th-century Irish monarchs O'Neill dynasty 1347 deaths {{Ireland-noble-stub