Daniel O'Brien, 1st Viscount Clare

Sir Daniel O'Brien, 1st Viscount Clare (Irish: Dónall MacConchobhair Ó Briain) (1577?–1663) was an Irish politician and soldier. He was the younger son of Connor O'Brien, 3rd Earl of Thomond and Una O'Brien.

Daniel O'Brien
Viscount Clare
Tenure1662–1663
SuccessorConnor O'Brien, 2nd Viscount Clare
Bornabout 1577
Died1663
Spouse(s)Catherine FitzGerald
Issue
Connor, & others
FatherConnor O'Brien, 3rd Earl of Thomond
MotherUna O'Brien

Birth and origins

Daniel was born about 1577, the third and youngest son of Connor O'Brien and his second wife, Una O'Brien.[1] His father was the 3rd Earl of Thomond. His father and his mother descended from different branches of the O'Briens, an important Gaelic Irish dynasty that descended from Brian Boru, high king of Ireland.[2]

Family tree
Daniel O'Brien with wife, parents, and other selected relatives.[lower-alpha 1]
Connor
3rd Earl		Una
O'Brien		Gerald
14th Earl
of Desmond
c. 1533 – 1583
Donogh
4th Earl
d. 1624		Elizabeth
FitzGerald
d. 1617		Daniel
1st Viscount
1577–1666		Elizabeth
FitzGerald
Henry
5th Earl
c. 1588 – 1639		Barnabas
6th Earl
c. 1590 – 1657		Connor
2nd Viscount
1605–1670		Honora
O'Brien
Daniel
3rd Viscount
d. 1691
Legend
XXXSubject of
the article		XXXViscounts
Clare		XXXEarls of
Thomond

Parliament

On 1 July 1604 in Leixlip, county Kildare, O'Brien was knighted. He sat as MP for Clare in the Irish House of Commons for from 1613 to 1614.

Marriage and children

O'Brien married Catherine FitzGerald, daughter of Gerald FitzGerald, 14th Earl of Desmond and Eleanor Butler.

Daniel and Catherine had four sons:

  1. Donogh (died 1538), who married Elizabeth Dowdall
  2. Connor
  3. Morrough
  4. Teige

—and a daughter:

  1. Margaret

Irish war

O'Brien was also a member of the Supreme Council of the Catholic Confederates. On 27 June 1652, at Ross Castle near Killarney, O'Brien together with Lord Muskerry surrendered to Ludlow. O'Brien served as hostage to guarantee Muskerry's compliance with the terms.[6]

Restoration and death

At the Restoration O'Brien returned to Ireland and recovered recovered a good deal of his estate at the. On 11 July 1662 Charles II created him Viscount Clare.[7] O'Brien died in 1666.

Notes
  1. This family tree is based on genealogies of the viscounts of Clare[3] and the Earls of Thomond.[4][5] Also see the lists of siblings and children in the text.
  1. Cokayne 1913, p. 251, line 29: "DANIEL O'BRIEN, of Moyarta and of Carrigaholt, co. Clare, 3rd and ygst s. of Connor (O'BRIEN), 2nd EARL OF THOMOND [I.], by his 2nd wife, Ownye, da. of Turlogh MAC-I-BRIEN-ARA ..."
  2. Cokayne 1896, p. 391, note b: "They were descended from the celebrated Brien Boroihme, principal king of Ireland (1002–1004) through his grandson Turlogh ..."
  3. Cokayne 1913, p. 251Genealogy of the viscountss of Clare
  4. Burke 1866, p. 406Genealogy of the earls of Thomond
  5. Cokayne 1896, p. 392Genealogy of the earls of Thomond
  6. Ó Siochrú, "O'Brien, Sir Daniel", 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 ..."
  7. Cokayne 1913, p. 252, line 1: "At the age of 80 or upwards he was cr. 11 July 1662, BARON MORARTA AND VISCPOUNT CLARE [or O'BRIEN OF CLARE], co Clare [I.]."

References
  • Burke, Bernard (1866). A Genealogical History of the Dormant, Abeyant, Forfeited and Extinct Peerages of the British Empire (New ed.). London: Harrison. – (for Thomond)
  • Cokayne, George Edward (1896). Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant. 7 (1st ed.). London: George Bell and Sons. – S to T (for Thomond)
  • Cokayne, George Edward (1913). Gibbs, Vicary (ed.). The complete peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, extant, extinct, or dormant. 3 (2nd ed.). London: St Catherine Press. – Canonteign to Cutts (for Clare)
  • Lee, Sidney, ed. (1895). "O'Brien, Daniel" . Dictionary of National Biography. 41. London: Smith, Elder & Co.
  • Ó Siochrú, Micheál. "O'Brien, Sir Daniel". Dictionary of Irish Biography. Retrieved 21 January 2021. – (online edition)
Peerage of Ireland
New creation Viscount Clare
1662–1663		 Succeeded by
Connor O'Brien
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