# Matthew O'Neill, 1st Baron Dungannon

Matthew O'Neill, 1st Baron Dungannon (alias Matthew Kelly, alias Feardorcha Ó Néill; c. 1510–1558), was an Irish aristocrat. He was accepted by Conn O'Neill as his natural son. Matthew was challenged by his half-brother Shane O'Neill over the succession to the Earldom of Tyrone and was murdered by some of his supporters.

## Birth and origins

Mathew was born about 1510, a son of Alison Kelly (née Roth) in Dundalk, the wife of a blacksmith in Dundalk. At the age of sixteen, Matthew was presented to Conn O'Neill, with whom Kelly had previously had an affair. Tyrone accepted that Matthew was his natural son.
Family tree :
| | | | | | | Conn Mor O'Neill d. 1493 | Conn Mor O'Neill d. 1493 | Conn Mor O'Neill d. 1493 | Conn Mor O'Neill d. 1493 | Conn Mor O'Neill d. 1493 | Conn Mor O'Neill d. 1493 | | | Eleanor FitzGerald | Eleanor FitzGerald | Eleanor FitzGerald | Eleanor FitzGerald | Eleanor FitzGerald | Eleanor FitzGerald |
| | | | | | | | | | | | | | | | | Alice FitzGerald | Alice FitzGerald | Alice FitzGerald | Alice FitzGerald | Alice FitzGerald | Alice FitzGerald | | | Conn 1st Earl Tyrone c. 1480 – 1559 | Conn 1st Earl Tyrone c. 1480 – 1559 | Conn 1st Earl Tyrone c. 1480 – 1559 | Conn 1st Earl Tyrone c. 1480 – 1559 | Conn 1st Earl Tyrone c. 1480 – 1559 | Conn 1st Earl Tyrone c. 1480 – 1559 | | | Sorcha O'Neill | Sorcha O'Neill | Sorcha O'Neill | Sorcha O'Neill | Sorcha O'Neill | Sorcha O'Neill |
| Phelim Caoch O'Neill d. 1542 d.v.p.* | Phelim Caoch O'Neill d. 1542 d.v.p.* | Phelim Caoch O'Neill d. 1542 d.v.p.* | Phelim Caoch O'Neill d. 1542 d.v.p.* | Phelim Caoch O'Neill d. 1542 d.v.p.* | Phelim Caoch O'Neill d. 1542 d.v.p.* | | | Mathew Baron Dungannon c. 1510–1558 Illegitimate d.v.p.* | Mathew Baron Dungannon c. 1510–1558 Illegitimate d.v.p.* | Mathew Baron Dungannon c. 1510–1558 Illegitimate d.v.p.* | Mathew Baron Dungannon c. 1510–1558 Illegitimate d.v.p.* | Mathew Baron Dungannon c. 1510–1558 Illegitimate d.v.p.* | Mathew Baron Dungannon c. 1510–1558 Illegitimate d.v.p.* | | | Joan Maguire 1558 | Joan Maguire 1558 | Joan Maguire 1558 | Joan Maguire 1558 | Joan Maguire 1558 | Joan Maguire 1558 | | | Shane O'Neill c. 1530 – 1567 The Proud | Shane O'Neill c. 1530 – 1567 The Proud | Shane O'Neill c. 1530 – 1567 The Proud | Shane O'Neill c. 1530 – 1567 The Proud | Shane O'Neill c. 1530 – 1567 The Proud | Shane O'Neill c. 1530 – 1567 The Proud |
| | | Art MacBaron d. 1618 Illegitimate | Art MacBaron d. 1618 Illegitimate | Art MacBaron d. 1618 Illegitimate | Art MacBaron d. 1618 Illegitimate | Art MacBaron d. 1618 Illegitimate | Art MacBaron d. 1618 Illegitimate | | | Brian 2nd Earl Tyrone d. 1562 de jure | Brian 2nd Earl Tyrone d. 1562 de jure | Brian 2nd Earl Tyrone d. 1562 de jure | Brian 2nd Earl Tyrone d. 1562 de jure | Brian 2nd Earl Tyrone d. 1562 de jure | Brian 2nd Earl Tyrone d. 1562 de jure | | | Hugh 3rd Earl Tyrone c. 1550–1616 | Hugh 3rd Earl Tyrone c. 1550–1616 | Hugh 3rd Earl Tyrone c. 1550–1616 | Hugh 3rd Earl Tyrone c. 1550–1616 | Hugh 3rd Earl Tyrone c. 1550–1616 | Hugh 3rd Earl Tyrone c. 1550–1616 | | | Siobhan O'Donnell d. 1591 | Siobhan O'Donnell d. 1591 | Siobhan O'Donnell d. 1591 | Siobhan O'Donnell d. 1591 | Siobhan O'Donnell d. 1591 | Siobhan O'Donnell d. 1591 |
| | | Owen Roe O'Neill c. 1585–1649 | Owen Roe O'Neill c. 1585–1649 | Owen Roe O'Neill c. 1585–1649 | Owen Roe O'Neill c. 1585–1649 | Owen Roe O'Neill c. 1585–1649 | Owen Roe O'Neill c. 1585–1649 | | | | | | | | | | | Hugh Baron Dungannon c. 1585–1609 d.v.p.* | Hugh Baron Dungannon c. 1585–1609 d.v.p.* | Hugh Baron Dungannon c. 1585–1609 d.v.p.* | Hugh Baron Dungannon c. 1585–1609 d.v.p.* | Hugh Baron Dungannon c. 1585–1609 d.v.p.* | Hugh Baron Dungannon c. 1585–1609 d.v.p.* | | | Henry O'Neill c. 1586–1610 | Henry O'Neill c. 1586–1610 | Henry O'Neill c. 1586–1610 | Henry O'Neill c. 1586–1610 | Henry O'Neill c. 1586–1610 | Henry O'Neill c. 1586–1610 |
| XXX | XXX | XXX | XXX | XXX | XXX | Subject of the article | Subject of the article | Subject of the article | Subject of the article | Subject of the article | Subject of the article | XXX | XXX | XXX | XXX | XXX | XXX | Earl of Tyrone | Earl of Tyrone | Earl of Tyrone | Earl of Tyrone | Earl of Tyrone | Earl of Tyrone |

## Marriage and children

Around 1536 Matthew married Siobhan, daughter of Cú Chonnacht Maguire, lord of Fir Manach.
Matthew and Siobhan had three sons:
* Brian (died 1562), called Lord Dungannon, de jure 2nd Earl of Tyrone, murdered
* Hugh (c. 1550 – 1616), who succeeded as the 3rd Earl of Tyrone
* Cormac (died 1613)
Matthew also had an illegitimate son:
* Art MacBaron O'Neill (died 1618)

## Baron Dungannon

As part of the surrender and regrant policy brought in during the reign of Henry VIII, his father was in October 1542 made Earl of Tyrone with Matthew confirmed as his heir and made Baron of Dungannon. Both visited London to formally submit to the King.

## Conflict with Shane O'Neill

This arrangement was disputed by Matthew's legitimate half-brother Shane O'Neill, who had a larger and more powerful following. Shane's violent response crushed the government's hope for a peaceful succession. Matthew was killed by Shane's men in 1558. At some point between May and August 1558, English statesman Sir Henry Sidney organised the retrieval of Dungannon's sons Brian and Hugh, and for a brief time they stayed at Sydney's Dublin residence. Dungannon's father Conn O'Neill died in 1559.
In his attempts to gain recognition of the title of Earl of Tyrone from the Crown, Shane suggested that Matthew had not really been Conn's son, and his real father was a blacksmith from Dundalk named Kelly. Shane tried to show Matthew's claims were weak under both the English law of primogeniture as well as the Gaelic custom of the strongest member of the family inheriting. Shane received some recognition of his role as head of the Ó Néills, but he was never made an earl. Shane was killed by the MacDonnells of Antrim in 1567.