Biography.guide
Home › People › Connor McDonogh O'Brien
Portrait of Connor McDonogh O'Brien

Connor McDonogh O'Brien

d. 1603

Irish nobleman and land-owner in County Clare (died 1603)

Don't just read it — keep itBiographies to ownE-book · Audio · Video From $7 →

About Connor McDonogh O'Brien

Illustration of table given by Boetius Clancy to Conor in 1588 made from parts of the wrecked Spanish Armada which had landed in Clare.

Conor O'Brien (died 1603) of Leameneagh was an Irish nobleman and land-owner in County Clare.

Life He was the son of Donough O'Brien and his wife Slaney McNamara.

Hugh Roe O'Donnell raided Thomond in 1599 and again in 1600 to punish the O'Briens for their adherence to the English and to avenge himself on the family of Murrough O'Brien, 4th Baron Inchiquin who, with Donogh O'Brien, 4th Earl of Thomond had invaded Tír Chonaill in 1597 under Sir Conyers Clifford. In his first foray into the territory, Hugh sent his lieutenant Aodh Maguire with a detachment to scour the lands of Kilnaboy where he wounded and captured Conor O'Brien, and brought him back to Inchiquin Castle which was given over to Maguire. Conor O'Brien was at this point acting as a guardian to Dermod O'Brien, 5th Baron Inchiquin who was only 4 years old, and was also in charge of Inchiquin Castle, since the death of the boy's father in 1597.

Spanish Armada Table According to tradition of the Barons Inchiquin, Boetius Clancy, then High Sheriff of Clare, presented to Conor the Spanish Armada table in 1588, made from parts of the wrecked Spanish Armada which had landed in Clare. The family were then living at Leamaneh Castle, and it was brought to Dromoland Castle when Conor's great grandson Donough had moved there in 1685 and was stored there for over 300 years before being sold at auction in 2018 by Lord Inchiquin.

Family He married Slaney O'Brien, daughter of Sir Turlogh O'Brien, the son of Domhnall mac Conchobair Ó Briain. He had a son, Donough.

Death He died on 2 January 1603 (as recorded in the Annals of the Four Masters) and was buried at the monastery of Ennis Abbey.

Biography shop

Don’t just read it —
keep it.

Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.

  • E-book
  • Audio
  • Video
Browse the shop — from $7

Instant download · yours to keep · every purchase keeps this site free

Important facts

Born
Leamaneh Castle
Also known as
Conor O'Brien

Family & relationships

Parent
Donough O'Brien (died 1582)

Frequently asked questions

Who was Connor McDonogh O'Brien?

Irish nobleman and land-owner in County Clare (died 1603)

When was Connor McDonogh O'Brien born?

Connor McDonogh O'Brien was born in Leamaneh Castle.

When did Connor McDonogh O'Brien die?

Connor McDonogh O'Brien died on 2 January 1603 in Ennis Friary.

Sources & further reading

· Wikipedia: Connor McDonogh O'Brien

· Wikidata: Q75285451

· DBpedia: Conor O'Brien (died 1603)

Cite this page

APA: Biography.guide. (2026). Connor McDonogh O'Brien. https://biography.guide/connor-mcdonogh-o-brien/

MLA: "Connor McDonogh O'Brien." Biography.guide, https://biography.guide/connor-mcdonogh-o-brien/.

Chicago: "Connor McDonogh O'Brien." Biography.guide. https://biography.guide/connor-mcdonogh-o-brien/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

Page generated 2026-09-27 05:12 UTC