The O'Briens of Wexford, Ireland

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Wexford Connection with Royal O'Brien Line:

  Brian Boriomhe (d. 1014) King of Ireland

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Teige (d. 1064) King of Ireland
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Turlough (d. 1086) King of Irleand
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Dermod (d. 1118)
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Turlogh (d. 1167)
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Donald mor (d. 1194)
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Donough Cairbreach O'Brien (d. 1242)
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Conor Na Suidane (d. 1258)
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Teige Cacluisce (d. 1259)
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Turlogh (d. 1306)
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Mortogh (d. 1306)
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Mortogh (d. 1343)
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Mahon Moimmoy (d. 1369)
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Brian Catha an Eanaigh (d. 1399) King of Ireland
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Teige na Glemore (d. 1444) -- Mahon Dall (d. 1462) -- Turlogh Bog (d. 1459)
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Donough (d. 1462) King of Irleand
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Brian an Cherlaig -Prince of Dunstir 1491
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Cathir Dubh -- Owen
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Murrough
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Gerald --Donell Owre 1581 -- Owen Bane (d. 1581)
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William-Brian-(d. 1614)
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James (b. 1587 d. 1617)
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Brian - Owen--
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Tiege
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Charles I----Eugene (d. 1744) -- Michael & James (priests)
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Brian Boriomhe (d. 1014) King of Ireland

Teige (d. 1064) King of Ireland

Turlough (d. 1086) King of Irleand

Dermod (d. 1118)

 

Attached is a picture of Dermod's brother Mortogh More O'Brien. This is probably the oldest picture of an O'Brien. They were grandsons of Brian Boroimhe. Mortogh founded The Mahon surname stems from his line. Some descendants moved to France. He died in 1119 AD.

 

Turlogh (d. 1167)

Donald mor (d. 1194)

Donald Mor married Urlean (or curled hair) the daughter of Dermod, King of Leinster. (It is possible some of their may have moved to Wexford).

Footnote: Donald Mor's grand-daughter, was Slaney O'Brien, who died in AD. 1260. She was an abbess. The Slaney River which runs by the O'Brien properties in the 1500's may have been named after a woman.

Donough Cairbreach O'Brien (d. 1242)

Conor Na Suidane (d. 1258)

Teige Cacluisce (d. 1259)

Turlogh (d. 1306)

Mortogh (d. 1306)

Mortogh (d. 1343)

Mahon Moimmoy (d. 1369)

Brian Catha an Eanaigh (d. 1399) King of Ireland between 1372 and 1399.

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Mahon Dall (d. 1462)
-is second son of Brian Catha an Eanaigh. Donough (1949) says "It appears from the situation of the estates of which this branch of the O'Briens were possessed, that its patrimony was in the Counties of Wexford and Waterford". Mahon Dall reigned in Thomond 5 years and 6 months, when he was dispossessed by his brother, Turlogh. Donough says thatthe lands of Tomgarrow and Monfin, Wexford were "held in the days of Mahon Dall, and (they were) held ...continuously from the middle of the 15th century until the middle of the 17th century. (Donough 1949, p 178).

Teige na Glemore (d. 1444)

Turlogh Bog (Eldest son-d. 1459) fathered Royal line: Earls of Thomond, Barons Inchiquin, Enistymon O'Briens, Vists, Clare and Dromoland O'Briens.

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Donough (d. 1462) King of Irleand 1437-42. Donough, was the son of Mahon Dall who on the death of his uncle Turlogh, was proclaimed King of Thomond : he had possessed the throne only two years, when (though we find him the natural and tanistic heir) he was dispossessed of his dominions by faction, and was obliged to seek refuge and settlement beyond the Shannon. His descendants were then styled Siol Mbrian Debiortha.

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Brian an Cherlaig - Mahon's grandson Brian Cherlaig was Prince of Dunster in 1491, and Brian's two sons Cathir Dubh, and Owen were respectively Lord of Dunster and Lord of Tomgarrow and Monfin, in Wexford.

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Cathir Dubh

Owen of Tomgarrow & Monfin in Wexford (near Ferns). His son succeeded him to both lordships

Murrough of Tomgarrow

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Donell Owre of Monfin was living in 1581 at the Castle of Monflin, now a ruin near Ferns." says Donough (1949 p. 178). He and his two brothers Gerald and Owen Bane were killed that year in Ireland in the war against Queen Elizabeth.

Gerald

Owen Bane (d. 1581)

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Teige Lambeth MS makes reference to Owen Bane's son, Teige, as living in Wexford.

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Brian (d. 1614) William. He was Donell Owne's eldest son who carried down the main line, When he died in 1614, leaving line to son James who was born in 1587 and died in 1617.

William was Donell Owne's second son, William O'Brien, is mentioned in the records of Trinity College, Dublin.

James (b. 1587 d. 1617) It was this James whose son Brian died without issue, having lost some of the family estates by confiscation.

Brian (dsp 1641) Owen son of James married Mary Roche. He succeeded his brother Brian, who had died in'r~g~having lost portion of his property by confiscation(md Mary Roche) ( portion of his I property Confscated)

Tiege (md Catherine Rossitor property confiscated. He was probably at the battle of the Boyne, for about 1692 his estates at Monfin were confiscated and having fled to France had a son Eugene O'Brien, who died in 1744, at Bourgen Bresse. At this point the family seems to have taken up permanent residence in France. Teige had married Catharine Rossitor, and had lived at Balangton in the Barony of Bantry. Besides Eugene, he had three sons, Michael, James and Charles


ON TO FRANCE:

Eugene (d. 1744) Donough (1949) says "Eugene's sons, Jean Francois O'Brien and Claude Marie Eugene O'Brien, both founded families in France. It is probable that those families are extant, but it has not been possible at present to verify this".

Michael (priest)

James (priest)

Charles I had two sons. Both died without issue-James (dsp.) & Patrick (dsp.) died without issue.

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Bibliography:

Donough O'Brien, History of the O' BRIENS, from BRIAN BOROIMHE AD. 1000 to AD. 1945, R. SCHINDLER in Cairo, 1949

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Last updated: December 07, 1999.