Daniel was born roughly about 1620, probably at Carrigaholt Castle, County Clare, his parents' habitual residence. He was the only son of Connor O'Brien (c. 1605 – 1670) and his wife Honora O'Brien.[3] At the time of his birth, his father was the heir apparent of his grandfather, O'Brien of Carrigaholt, who was a younger brother of Donogh O'Brien, 4th Earl of Thomond. His father's family was the senior branch of the O'Briens, a Gaelic Irish dynasty that descended from Brian Boru, medieval high king of Ireland.[4]
He went with his father and grandfather into French exile and seems to have ben a courtier at Charles II's court in exile. At the Restoration in 1660 he returned to England or Ireland with his father and grandfather. On 11 July 1662 Charles II created his grandfather Baron Moyarta and Viscount Clare.[7] The honour was intended for him, Daniel,[8] into whose hands the estate was directly conveyed.[9] His grandfather died in 1663[10] or in 1666, and his father succeed as 2nd Viscount and he gained the courtesy title of Baron Moyarta.
At his father's death in 1670[14] Moyarta succeeded as the 3rd Viscount Clare.[15]
In August 1674 Clare, as he was now, was appointed commander of a newly raised regiment of foot, Clare's Regiment of Foot, an Irish regiment in the Dutch States Army. He was replaced within twelve months by Sir John Fenwick. From July 1751 on this regiment would be known as the 5th Regiment of Foot.
In 1689 James II of England appointed Clare, as he was now, together with Boileau as joint governors of Cork.[17] On 11 August Clare imprisoned the Protestants of the city in St Peter, Christchurch, and the courthouses.[18] They were later detained in the castles of Blarney and Macroom.[19][20] In 1690 Clare fought for James at the Battle of the Boyne.[21]
Death and timeline
Daniel died in 1691. He was outlawed on 11 May 1691.[22]
Timeline
As his birth date is uncertain, so are all his ages.
^This family tree is based on a pedigree of the viscounts of Clare,[1] as well as genealogies of the viscounts of Clare[2] Also see the lists of children in the text.
^Cokayne 1896, p. 391, Note b. "They were descended from the celebrated Brien Boroihme, principal king of Ireland (1002–1004) through his grandson Turlogh ..."
^ abFirth 1894, p. 322, line 4. "... his son together with Daniel Obryan were delivered to me [Edmund Ludlow] as hostages ..."
^Cokayne 1913, p. 252, line 1. "At the age of 80 or upwards he was cr. [created] 11 July 1662, Baron Morarta and Viscount Clare [or O'Brien of Clare], co Clare [I.[Ireland] ]."
^Cokayne 1913, p. 252. "[Daniel, his grandson] was in attendance on Charles II during his exile, and through his influence the peerage for his grandfather was obtained."
^O'Donoghue 1860, p. 323. "... set out and allotted onto Daniel O'Brien, Esq., son and heir to Conor ..."
^Ohlmeyer 2004, p. 358. "O'Brien, Daniel, first viscount Clare (1577?–1663)"
^O'Hart 1892, p. [archive.org/details/irishpedigrees00unkngoog/page/167/ 167, right column, line 13]. "I. Daniel, the fourth Viscount, who d. unm. in 1697."
^Burke 1883, p. 407, left column, line 11. "Charles, 5th viscount, entered the French service and was mortally wounded at Ramillies, 11 May 1706 ..."
^ abÓ Siochrú 2009, 3rd paragraph, 3rd sentence. "He died in 1666 and was succeeded by his eldest surviving son Conor, and then in 1670 by Daniel, his grandson."
^Davis 1893, p. 157. "Daniel O'Brian, Lord Viscount Clare ..."
^Smith 1893b, p. 115. "On the 11th of August the Lord Clare, governor of Cork, committed all the Protestants of the city to St. Peter's, Christ Church, and the courthouses."
^Windele 1839, p. 198. "His [Clancarty's] castles of Blarney and Macroom, he permitted to be converted into prisons for the reception of some of the disaffected Protestants of Cork."
^Gibson 1861, p. 147. "James appointed Lord Clare and M. Boileau, governors of Cork, who appeared to have acted with severity towards the Protestants. "On the llth of August, the Lord Clare, governor of Cork, committed all the Protestants of the city to St. Peter's, Christ Church,* and the Court-Houses; on the 10th of September several were sent to Blarney Castle;... on the llth [September 1689], many to Macroom;"
^Ó Siochrú 2009, last paragraph. "... fought as a colonel of a regiment under James II (qv) at the battle of the Boyne in 1690"
^House of Lords 1779, p. 675. "Daniel Lord Visc. Clare was outlawed in the co. of the City of Dublin the 11 May in the third year of King William and Queen Mary [1691]."
^Warner 1768, p. 6. "... the twenty-third October [1641] ... seized all the towns, castles, and houses belonging to the Protestants which they had force enough to possess;"
^Ó Siochrú 2009, End of 2nd paragraph. "... he submitted to the English parliament under the articles agreed the following year by Donogh MacCarthy, Viscount Muskerry. O'Brien was one of the hostages ..."