O'Brien (No.2) family genealogy

Marquises of Thomond

MURROUGH, the third son of Turlogh Donn, who is No. 120 on the "O'Brien" (Kings of Thomond) pedigree, was the ancestor of this branch of that family:

121. Murrough: [1] son of Turlogh Donn; d. 1551; was the first "Earl of Thomond" and "Baron of Inchiquin; m. Eleanor, dau. of Thomas FitzGerald, Knight of the Valley, and had three sons and three daughters; the sons were:

I. Dermod of whom presently.

II. Teige, of Smithstown Castle, who m. Mór, dau. of Donal O'Brien, and had:

I. Turlogh, who d. s. p.

I. Honoria, who m. Richard Wingfield, an ancestor of the Viscounts Powerscourt.

II. Slaine, who m. Teige, son of Connor, the Third Earl of Thomond.

III. Hannah, who m. Donogh O'Brien.

III. Donogh, from whom descended O'Brien of Dromoland. The daughters were:

I. Margaret, b. 1535, who m. Richard, the second Earl of Clanricard.

II. Slaine, whose second husband was Sir Donal O'Brien, of Dough.

III. Honoria, who m. Sir Dermod O'Shaughnessy, of Gort, and had issue.

122. Dermod, who d. 1557; eldest son of Murrough; inherited the Barony of Inchiquin, only—the Earldom of Thomond having been conferred on his cousin Donogh Ramhar, who is No. 122 on the "O'Brien" (Kings of Thomond) pedigree. Dermod m. Margaret, dau. of said Donogh, and had:

123. Murrough, who d. in 1573; was the third Baron of Inchiquin; m. Anabella (or Mable), dau. of Christopher Nugent, the ninth Lord Delvin, and had:

124. Murrough, the fourth Baron, who d. in 1597; m. Margaret, dau. of Sir Thomas Cusack, Knt., Lord Chancellor, and Lord Justice of the "Pale," and had:

I. Dermod, of whom presently.

II. Teige, who m. Slaine, dau. of Murrough O'Brien, of Ara.

I. Slaine, who m. William Dongan, Recorder of Dublin.

125. Dermod, who d. 1624: the elder son of Murrough; was the fifth Baron; m. Ellen, dau. of Sir Edward Fitzgerald, of Ballymaloe and Cloyne, Knt., and had four sons and three daughters:

I. Murrough, of whom presently.

II. Henry, a Lieutenant-Colonel in the Army of Charles I., King of England.

III. Christopher, who d. in infancy.

IV. Christopher (2), a Lieutenant-Colonel in the Irish Confederate Army, who was created "Baron of Inchiquin," by the Supreme Council of the Catholic Confederation at Kilkenny; m. Honoria, dau. of Turlogh MacMahon of Clonderala.

I. Honoria, who m. Anthony Stoughton of Rattoo, in the co. Kerry, and had, besides other children, Elizabeth Stoughton, who m. Colonel Roger Moore, of Johnstown, near Dublin, and had Elizabeth, who m. Colonel Henry Edgeworth, and had:

I. Henry Edgeworth, of Lizard, near Edgeworthstown, in the co. Longford.

II. Robert.

III. Rev. Essex Edgeworth of Templemichael, in the said county, who, in Nov., 1719, m. Elizabeth, dau. of Sir Robert King, Bart., from whom the Earls of Kingston and the Viscounts Lorton descended.

I. Maria.

II. Elizabeth.

II. Mary: the second dau. of Dermod, m. His Grace, the Most Rev. Dr. Boyle, Protestant Archbishop of Armagh.

III. Anne: the third dau. d. unm.

126. Murrough-an-Toitean: [2] son of Dermod, d. in 1674; was the sixth Baron and the first Earl of Inchiquin: m. Elizabeth, dau. of Sir William St. Leger, Knt., President, of Munster, and had:

I. William, of whom presently.

II. Charles, slain at the siege of Maestricht.

III. John, who served as a Captain in the United Provinces under the Prince of Orange.

I. Elizabeth, whose second husband was John MacNamara, of Cratloe.

II. Honoria, who m. Theobald, the third Lord Brittas (outlawed in 1691), by whom she had two sons and one dau.:

I. John, fourth Lord Brittas, a Captain in the French Army, who had a son, also a Captain in that Army, and known as the fifth Lord Brittas (and likewise Lord Castleconnell, a title forfeited by his grandfather in 1691, for his adherence to King James II.); another son, Thomas, a Benedictine monk, who d. at Perugia in 1722; and Elizabeth, who m. James (FitzTheobald) Mathew, of Thurles.

III. Mary, whose first husband was Henry Boyle, of Castlemartyr, father of Henry, first Earl of Shannon.

IV. Finola, who d. s. p.

127. William: eldest son of Murrough-an-Toitean; was the second Earl of Inchiquin: d. at his castle of Rostellan, near Cloyne, in 1691. Married Mary, dau. of Edward Villiers, Knt., and sister of Edward, Earl of Jersey, and had:

I. William, who d. 1719, m. Anne, Countess of Orkney, and had:

I. William, Lord O'Brien, who d. s. p.

II. George, Lord O'Brien.

III. Augustus, d. s. p.

IV. Murrough, d. s. p.

I. Mary, who married Murrough, the fifth Earl of Inchiquin.

II. Anne.

III. Frances.

IV. Elizabeth.

II. James, of whom presently.

III. Charles, who d. unm.

IV. Donal, who d. 1768.

I. Mary: the elder daughter of William; married Robert (died 1744), 19th Earl of Kildare.

II. Henrietta.

128. James (died 1771), M.P. for Youghal: second son of William (d. 1691); married Mary, dau. of Very Rev. William Jephson, Protestant Dean of Kilmore, and had:

I. Murrough (d. 1808), the fifth Earl, who was created Marquis of Thomond; m. the Lady Mary O'Brien, but d. without male issue: in default of which the remainder was to the issue of his brother Edward, who d. in 1801, in the lifetime of Murrough.

II. Edward, of whom presently.

III. John, who was a Lieutenant in the English Navy.

I. Mary.

II. Anne, who m. the Most Rev. Dr. Cox, Piotestant Archbishop of Cashel, and had a son:

I. Richard Cox.

III. Henrietta, whose first husband was Teige O'Loughlin, of Burren, in the co. Clare.

129. Edward: the second son of James; d. 1801; married Mary, daughter of —— Carrick, and had:

I. William, the second Marquis of Thomond, who d. 1846; succeeded to the title on the death of his uncle, Murrough, in February, 1808; married Elizabeth, daughter of Thomas Trotter, Esq., of Duleek, by whom he had four daughters.

II. James, of whom presently.

III. Edward, R.N.

130. James; the third Marquis: second son of Edward; was the seventh Earl, and the twelfth Baron. Was an Admiral of the White G.C.H., and commanded the "Emerald" at the capture of St. Lucia and Surinan. Married twice: first, in 1800, to Miss Bridgeman —— Willyams; and secondly, to Jane, daughter of Thomas Ottley, Esq., but died in 1855, without surviving male issue, and on his death the Marquisate of Thomond, and Earldom of Inchiquin became extinct. The "Barony" devolved on the Dromoland branch of the O'Brien family, in the person of Sir Lucius O'Brien, who is No. 131 on the "O'Brien" (Lords of Inchiquin) pedigree, infra.


[1] Murrough: This Murrough O'Brien, having, A.D. 1543, dispossessed his nephew, Donogh, of the principality of Thomond, repaired to England and made his submission to King Henry VIII., to whom he resigned the principality, and was created therefor "Earl of Thomond," and Baron of Inchiquin: the conditions being, that he should utterly forsake and give up the name O'Brien, and all claims to which he might pretend by the same; and take such name as the king should please to give him; and he and his heirs and the inheritors of his lands should use the English dress, customs, manners, and language; that he should give up the Irish dress, customs, and language, and keep no kerns or gallowglasses.—CONNELLAN.

[2] Toitean: Murrough-an-Toitean ("toitean:" Irish, a burning, or conflagration) or Murrough of the Conflagrations, was appointed President of Munster, where he is well remembered for his cruelties, and always mentioned with an imprecation; so cruel that in Munster it is commonly said of a person who appears to be frightened; Do chonnairc se Murcadh no an tur b-fhoisge do, "He has seen Murrough or the clump next to him." This Murrough, in 1642, at the head of 1,850 foot and 400 horse, attacked the Irish under Lord Mountgarret, at Liscarroll, and defeated them with great slaughter. He sided with the Parliament, in 1644, against King Charles the First, and was by that Parliament appointed President of Munster. In 1647, he reduced several fortified places in the county of Waterford; besieged Cahir, in Tipperary, which surrendered to him; and took "Cashel of the Kings" by storm:

"The inhabitants of Cashel," says Lewis, "took refuge in their church on the rock which was well fortified and garrisoned. Inchiquin proposed to leave them unmolested on condition of their contributing £3,000, and a month's pay for his army. This offer being rejected, he took the place by storm, with great slaughter, both of soldiers and citizens: among them twenty of the clergy were involved; and, having secured the immense booty of which he obtained possession, he dispersed his forces into garrison."

Murrough-an-Toitean defeated the Irish under Lord Taaffe and Sir Alexander MacDonnell (commonly called "Alastrum Mór," who was the eldest son of Sir James, of Eanagh and Ballybannagh, No. 118 on the "MacDonnell," of the County Clare pedigree), at the Battle of Knocknaness, on the 13th of November, 1647; for which the Parliament sent him a letter of thanks, with a present of £1,000. In 1648, he reduced Nenagh, as appears by the following letter which he wrote to his friend, Colonel David Crosbie, Governor of Kerry:

"I have reduced Nenagh, and am this day marching after Owen Roe (O'Neill), either to the Boyne or Borris-in-Leix. Preston is before Athy, and being possessed of part of it three days since, it is confidently believed he is Mr. (Master) of it by this tyme. I have now only to advise you to use your best care in keeping ye country in good order, remayneing

"Yor affectionate friend,



17th Sept., 1648."

Of Murrough-an-Toitean we read in De Vere's Wail of Thomond:

"Can it be? Can it be? Can O'Brien be traitor?

Can the great House Dalcassian be faithless to Eire?

The sons of the stranger have wrong'd—let them hate her!

Old Thomond well knows them; they hate her for hire!

Can our Murrough be leagued with the rebels and ranters

'Gainst his faith and his country, his king and his race?

Can he bear the low wailings, the curses, the banters?

There's a scourge worse than these—the applause of the base!

"Was the hand that set fire to the churches descended

From the band of the King that uprear'd them, BOROIMHE?

When the blood of the priests and the people ran blended,

Who was it cried, 'Spare them not?' Inchiquin, who?

Some Fury o'er-ruled thee! some root hast thou eaten!

Twas a demon that stalked in thy shape! 'Twas not thou!

Oh, Murrogh! not tears of the angels can sweeten

That blood-stain; that Cain-mark erase from thy brow!"

Soon after the reduction of Nenagh, Murrough-an-Toitean changed sides: Early in 1649, he openly espoused the cause of Charles II., who in a letter from the Hague appointed Murrough President of Munster; and on the 14th of April of same year he was pronounced a traitor by the Commonwealth Parliament. On the 1st of June following he sent the subjoined communication:

"To the Officer commanding in Cheeffe, Castlemaine.

By the Lord President of Maunster:

"You, and the rest of the Warders of Castlemaine, are hereby required to be obedient to the directions and commands of Coll. David Crosbie uppon all occasions, and to deliver him, if occasion shall require for his Maties. (Majesty's) service, admonition (ammunition) out of the said Castle; thereof you may not faile at yor pill (peril); and for yor soe doeing this shall be yor Warrant.


"Dated the first of June, 1649."