Sir Phelim Roe O'Neill of Kinard (Irish: Sir Féilim Rua Ó Néill na Ceann Ard; 1604–1653) was an Irish politician and soldier who started the Irish rebellion in Ulster on 23 October 1641. He joined the Irish Catholic Confederation in 1642 and fought in the Wars of the Three Kingdoms under his cousin, Owen Roe O'Neill, in the Confederate Ulster Army. After the Cromwellian conquest of Ireland O’Neill went into hiding but was captured, tried and executed in 1653.

Quick Facts Sir Phelim O'Neill, Born ...

Sir Phelim O'Neill
Detail of the portrait further down
Born	About December 1604
Died	10 March 1653
Family	O'Neill dynasty
Spouse(s)	Jean Gordon
Issue Detail	Gordon O'Neill
Father	Turlough MacShane O'Neill
Mother	Catherine O'Neill

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Phelim was born in 1604,^[1] the eldest son of Turlough O'Neill^[2] and his wife Catherine O'Neill. His father was a member of the Kinard branch of the O'Neills who were descendants of Shane O'Neill of Kinard, a half-brother of Conn Baccach O'Neill. His father and paternal grandfather were killed on 20 June 1608, while defending Kinard against the insurgents during the O'Doherty's Rebellion.^[3][4] This grandfather, Sir Henry Óg O'Neill, had fought for his second cousin and father-in-law, Hugh O'Neill, Earl of Tyrone in the Nine Years' War, but had received a pardon and was confirmed in his lands in Tiranny and Minterburn. His second great-grandfather, Sean, a brother of Conn Bacach, had settled in Tynan parish by at least 1514 in a sub-district called Cluain Dabhal. Phelim's name in Irish shows his paternal genealogy as: "Felim mac Turlogh mac Henry Óg mac Henry mac Seán mac Conn Mór Ó Néill" (father of Conn Bacach O'Neill).

Phelim's mother was Catherine^[5] daughter of Turlough MacHenry O'Neill, chief of the Fews branch of the O'Neills. After Phelim's father's death, she remarried to Robert Hovenden, a Catholic of recent English descent. He had two half-brothers from his mother's second marriage: Robert Hovenden and Alexander Hovenden. The latter was killed as a captain in 1644 fighting for Phelim.

Felim, together with his younger brother Turlough, entered King's Inns in London in June 1621,^[6] as a knowledge of the law was considered important for landowners of the era. He briefly converted to Protestantism, before returning to Catholicism.

He married three times. In 1629 he married a daughter of Arthur Magennis, the 3rd Viscount Magennis of Iveagh.^[7] Her first name is unknown.

On 17 March 1639 in Dublin O'Neill was knighted by Thomas Wentworth, Lord Deputy, thanks to the influence of his relation the Earl of Antrim.^[8][9] Shortly before the rebellion, O'Neill evicted some of his Gaelic tenants near Kinard and replaced them with British settler families who paid higher rents.^[10]

In summer 1641,^[11] O'Neill was elected MP for Dungannon in County Tyrone in a by-election for the Irish Parliament of 1640–1649, replacing Thomas Madden, who had died in office.^[12][13]

His first wife died in September 1641 shortly before the rebellion. He married secondly Louise, daughter of Thomas Preston, 1st Viscount Tara, a younger brother of the 5th Viscount Gormanston.^[14][15]

Like many Irish Catholics and especially Gaelic Irish Catholics, O'Neill felt threatened by the Protestant English government of Ireland. In particular, they were aggrieved at Catholic exclusion from public office and the continual confiscations of Catholic-owned land. Another reason pressing him into desperate action was that Phelim was deep in debt.^[16]

The rebellion quickly spread to the rest of Ireland. By the spring of 1642 only fortified Protestant enclaves, around Dublin, Cork and Derry, held out. King Charles I sent a large army to Ireland, which would probably have put down the rebellion, had the English Civil War not broken out. As it was, the Irish Catholic upper classes had breathing space to form the Irish Catholic Confederation, which acted as a de facto independent government of Ireland until 1649. Phelim O'Neill was a member of the Confederate's General Assembly, but was sidelined in the leadership of Irish Catholics by wealthier landed magnates.

O'Neill was also sidelined on the military side. After his disastrous defeat on 16 July 1642 at Glenmaquin near Raphoe in County Donegal against the Protestant Laggan Army led by Sir Robert Stewart, his kinsman, Owen Roe O'Neill, a professional soldier, arrived from the Spanish Netherlands and was made general of the Confederate's Ulster army. Phelim O'Neill served as cavalry commander under him and spent most of the next six years fighting against the Scottish Covenanter army that had landed in Ulster. He fought in the army's victory at the Battle of Benburb on 5 June 1646.^[24]

In Confederate politics, O'Neill was a moderate, advocating a deal with Charles I and the Irish and English Royalists as a means of winning the war against the English Parliament and the Scottish Covenanters. In 1648, he voted for such a deal, the Second Ormond Peace, splitting with Owen Roe O'Neill, who opposed it along with most of the Ulster army. He and several other moderates such as Alexander MacDonnell, 3rd Earl of Antrim and Arthur Magennis, Viscount Iveagh left the Ulster army because of their dispute with the hard-liners.^[25] In the summer of that year, the Confederate armies fought among themselves over this issue, with the pro-Royalists prevailing.

However, this was not enough to stop Ireland from being conquered by the New Model Army of Oliver Cromwell in 1649–53. The well-trained and supplied Parliamentarians crushed all Confederate and Royalist resistance and imposed a harsh settlement on Irish Catholics.

In November 1649 O'Neill married Jean Gordon, the widow of Claud Hamilton, 2nd Baron Hamilton of Strabane, who had died on 14 June 1638.^[26]

O'Neill fought in the Ulster Army at the Battle of Scarrifholis in 1650 where it was routed by Charles Coote, 2nd Baronet of Castle Cuff. O'Neill escaped from the battle and retreated with a rest of the Ulster army to the Charlemont Fort. Together with his stepson James Hamilton, 3rd Baron Hamilton of Strabane he held the fort against Coote, inflicting heavy casualties on the English troops in the Siege of Charlemont, but surrendered on terms on 6 August 1650^[27] and marching away with his remaining troops was expected to embark and take service in France. However, O'Neill decided to rather go into hiding.^[28]

Anyone implicated in the Rebellion of 1641 was held responsible for the massacres of Protestant civilians and was executed. O'Neill was specifically named as a ringleader in the Cromwellian Act for the Settlement of Ireland 1652 and could therefore expect no mercy. A bounty of £100 was put on his head.^[29] O'Neill was captured on 4 February 1653 by William Caulfeild, 1st Viscount Charlemont on a crannog (artificial island) in Roughan Lough next to Roughan Castle, Newmills, County Tyrone where he had taken refuge. He was taken to Dublin, where his trial was held. He was found guilty, hanged, drawn, and quartered for treason on 10 March 1653.^[30]

O'Neill may have been able to avoid execution had he testified that he had Charles I's commission for the uprising of 1641, as the Parliamentarians claimed at the time. However, O'Neill refused to do so.^[31] He was survived by at least one child, Gordon O'Neill, who would serve as a colonel in the Jacobite forces during the Williamite War.

O'Neill is depicted as a historical character in several books. Annraoi Ó Liatháin's Irish-language novel Dún na Cinniúna centres on the 1651 siege of Charlemont Fort in Tyrone.^[34]

O'Neill's defeat at the battle of Glanmaquin in 1642 is described in Darach Ó Scolaí's novel An Cléireach.^[35]

The use of "P. O'Neill" as a pseudonym in Provisional IRA public statements is thought by some to be a reference to Phelim O'Neill.^[36]