Conor O'Brien, 18th Baron Inchiquin

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The Lord Inchiquin
Born17 July 1943
Surrey, England
Allegiance United Kingdom
Service/branch British Army
Years of service1962-1975
Unit14th/20th King's Hussars
RelationsHelen Farrell (wife, m.1988)
The Hon. Slaney O’Brien (born 1989)
The Hon. Lucia O’Brien (born 1991)
Other workFormer Chairman of the Standing Council of Irish Chiefs and Chieftains

Conor Myles John O'Brien, 18th Baron Inchiquin (born 17 July 1943) is an Irish peer and farmer.[1]

He is the son of Fionn Myles Maryons O'Brien (28 October 1903 – 2 August 1977) and Josephine Reine Bembaron (died 27 October 2011). Fionn was the son of Lucius William O'Brien, 15th Baron of Inchiquin and Ethel Jane Foster. He was educated at Radley College, Abingdon, Oxfordshire and at Loughborough College, Leicestershire.

Conor Myles John O'Brien was educated at Eton, he succeeded to the peerage on the death of his uncle, Phaedrig O'Brien, 17th Baron Inchiquin, in 1982.[2][3] In 1998, he visited Antioch, California for St. Patrick's Day and Antioch's first St. Patrick's Day Crinniu, hosted by then-Councilman Allen Payton and the city's council proclaimed "Sir Conor O'Brien Day".[4] He married Helen Regina Farrell and together they have two children, The Hon. Slaney O'Brien and The Hon. Lucia O'Brien.

Dromoland Castle, from, A series of picturesque views of seats of the noblemen and gentlemen of Great Britain and Ireland (1840)

IN April 2010, O'Brien was awarded €7.9m in damages by the High Court over the repudiation of an agreement to buy 377 acres out of the 600 acres of the Dromoland estate which his family still owned.[5]

In 2012, in a long running dispute with the management of Dromoland Castle, Inchiquin was refused an application to the High Court for them to return 37 paintings that were loaned several decades prior.[6][7][8]

Descent from Brian Boru[9][edit]

O'Brien is said to be the 32nd indirect descendant to Brian Ború.[10]

1. Conor Myles John O'Brien, 18th Baron Inchiquin
2. Fionn Myles Maryons O'Brien
3. Lucius O'Brien, 15th Baron Inchiquin
4. Edward O'Brien, 14th Baron Inchiquin
5. Lucius O'Brien, 13th Baron Inchiquin
6. Sir Edward O'Brien, 4th Baronet
7. Sir Lucius O'Brien, 3rd Baronet
8. Sir Edward O'Brien, 2nd Baronet
9. Lucius O'Brien
10. Sir Donough O'Brien, 1st Baronet
11. Connor O'Brien, of Leamanagh
12. Sir Donogh O'Brien, of Leamanagh
13. Connor O'Brien, of Leamanagh
14. Donogh O'Brien, of Leamanagh
15. Murrough O'Brien, 1st Earl of Thomond
16. Toirdhealbhach Donn Ó Briain, King of Thomond
17. Tadhg an Chomhaid Ó Briain, King of Thomond
18. Toirdhealbhach Bóg Ó Briain, King of Thomond
19. Brian Sreamhach Ua Briain, King of Thomond
20. Mathghamhain Maonmhaighe Ó Briain, King of Thomond
21. Muircheartach Ó Briain, King of Thomond
22. Toirdhealbhach Mór Ó Briain, King of Thomond
23. Tadhg Cael Uisce Ó Briain, Tanaiste of Thomond
24. Conor na Siudane Ua Briain, King of Thomond
25. Donnchadh Cairbreach Ó Briain, King of Thomond
26. Domnall Mór Ua Briain, King of Munster
27. Toirdhealbhach mac Diarmaida Ua Briain, King of Munster
28. Diarmait Ua Briain, King of Munster
29. Toirdelbach Ua Briain, High King of Ireland
30. Tadc mac Briain
31. Brian Boru, High King of Ireland


  1. ^ McGuinness, Katy (1 February 2019). "Rare chance to acquire a modern show house on the grounds of Dromoland Castle". Irish Independent. Retrieved 13 April 2019.
  2. ^ "O'BRIENS FIND ROOTS IN UTAH". The Deseret News. Salt Lake City, UT. 16 February 1997. Retrieved 5 April 2010.
  3. ^ Welcome to the O'Brien Clan - Sir Conor O'Brien Archived May 15, 2010, at the Wayback Machine
  4. ^ "St. Patrick's event was fun day for all". Ledger Dispatch. Sir Conor O'Brien was received warmly, and was taken aback when he received the proclamation from the City Council of "Sir Conor O'Brien Day in the City of ... March 28, 1998. pp. A10. Retrieved 6 April 2010.
  5. ^ "Clare estate owner awarded €7.9m damages against O'Brien-controlled TPH". 13 April 2010. Retrieved 13 April 2019.
  6. ^ "Baron loses court bid on paintings". The Irish Times. 19 September 2012. Retrieved 13 April 2019.
  7. ^ Clarke, Jody (19 September 2012). "Court refuses to give Dromoland paintings back to Lord". Retrieved 13 April 2019.
  8. ^ Deegan, Gordan (24 March 2017). "Lord fails in attempt to halt €16m upgrade at Dromoland Castle". Irish Independent. Dublin. Retrieved 13 April 2019.
  9. ^ John O'Hart,"Irish Pedigrees or the Origin and Stem of the Irish Nation", Volume 1, 1892, p.156-160, p. 169-170,
  10. ^ Danaher, Dan; Byrne, Carol (12 April 2014). "Lord Inchiquin bemoans lack of funding for Boru celebrations". The Clare Champion. Ennis. Retrieved 13 April 2019.

External links[edit]

  • Profile,; accessed 24 August 2015.
Peerage of Ireland
Preceded by
Phaedrig O'Brien
Baron Inchiquin
Succeeded by