Barnabas O'Brien, 6th Earl of Thomond (died 1657), son of Donogh O'Brien, 4th Earl of Thomond; succeeded his brother, 1639; lord-lieutenant of Clare, 1640–1: his rents seized, 1644; admitted a parliamentary garrison to Bunratty Castle and went to England: joined Charles I; successfully petitioned parliament for £2,000 spent in the parliamentary cause.[1]
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Barnabas entered the Irish parliament in 1613 as member for Coleraine. In 1634 he was returned for Clare as colleague of his uncle, Daniel O'Brien, afterwards 1st Viscount Clare; but, being compelled to go to England for a time, a writ was issued for a fresh election.[2]
In 1639 Barnabas succeeded his brother Henry as sixth earl of Thomond, and applied for the governorship of Clare, which Thomas Wentworth, Earl of Strafford refused him on the ground that his conduct differed entirely from that of his brother, and that he deserved nothing. Nevertheless he was lord-lieutenant of Clare in 1640–1. "When the Irish rebellion broke out he attempted to maintain neutrality, in spite of the support given by his kinsmen to the confederation,[3] and did not sign the oath of association in 1641.[2]
Thomond lived quietly on his lands in Clare, and was in frequent communication with James Butler, 1st Duke of Ormonde. In 1644 the council of the confederation forbade Thomond's agents to collect his rents, and even formed a scheme for seizing his chief stronghold at Bunratty, which his uncle, Sir Daniel O'Brien, was appointed to carry out. Thereupon Thomond, finding that no troops were forthcoming wherewith to defend Bunratty Castle, entered into negotiations with the parliamentarians, in spite of the remonstrances of Edward Somerset, Earl of Glamorgan. At the instigation of his kinsman, Murrough O'Brien, 1st Earl of Inchiquin, he admitted a parliamentary garrison to the castle, and went to live in England.[4]
Thomond soon joined King Charles I at Oxford, and received, on 3 May 1645, a patent creating him Marquis of Billing in Northamptonshire.[5] But the patent never passed under the great seal.[2]
A few years later Thomond petitioned parliament for the recovery of £2,000 which had been seized in Bunratty, pleading that his real estate was in the hands of the Irish rebels, and that he had spent £16,OOO on the parliamentary cause. His petition was granted, and he apparently gave no cause for suspicion to the Commonwealth or protectorate, for his son Henry's request, on 15 December 1657, for the governorship of Thomond was favourably received by Henry Cromwell.[6] Thomond died in November 1657, and his will, dated 1 July 1657, in which he left some bequests to Great Billing, was proved in England on 6 February, and in Ireland on 28 April in the same year.[7]
Pollard mentiones that the authors of Lodge's Peerage (ed Archdall) maintained that Thomond was of strict loyalty, religion, and honour, and that his lands were taken from him during the rebellion through the unnatural conduct of his nearest relations;[8] it was also believed that he gave up Bunratty at Ormonde's instigation.[9]
Barnabas was the second son of Donogh O'Brien, 4th Earl of Thomond, by his second wife, Elizabeth, fourth daughter of Gerald FitzGerald, 11th Earl of Kildare His elder brother, Henry O'Brien, 5th Earl of Thomond, who succeeded to the earldom on his father's death in 1624, was a strenuous adherent of the government in Ireland, was warmly commended by Thomas Wentworth, Earl of Strafford for his loyalty, and died without male issue in 1639.[2]
Barnabas married Mary, youngest daughter of Sir George Fermor and widow of James, lord Sanquhar, by whom he had one son, Henry O'Brien, 7th Earl of Thomond, his successor (1621–1691); and one daughter, Penelope, who married Henry Mordaunt, 2nd Earl of Peterborough.[2]
| Peerage of Ireland | ||
|---|---|---|
| Preceded by Henry O'Brien |
Earl of Thomond 1590–1657 |
Succeeded by Henry O'Brien |