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Inchiquin, Earl of (I, 1654 - 1855)

 

Creation: let.pat. 21 Oct 1654

 

Extinct: 3 Jul 1855

 

Family name: O'Brien

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Arms:

See Baron Inchiquin

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Murrough [O'Brien], 6th Baron Inchiquin later 1st Earl of Inchiquin, PC

son and heir of Dermod [O'Brien], 5th Baron Inchiquin, by his wife Ellen FitzGerald, dau. of Sir Edmond FitzEdmund FitzGerald, of Cloyne

born

c. 1614

mar.

c. 1 Oct 1635 Elizabeth St Leger (d. 22 May 1685; bur. at Doneraile, co. Cork), dau. of Sir William St Leger, Vice-President of Munster 1627-42, by his first wife Gertrude de Vries, of Dort, Holland

children

1. Hon William O'Brien, later 2nd Earl of Inchiquin

2. Capt Hon Charles O'Brien RN (d. at sea at the Siege of Maestricht)

3. Capt Hon John O'Brien (dsp. c. 1699), mar. Honora Geoghegan, dau. of Connla Geoghegan

1. Lady Elizabeth O'Brien (d. Sep 1688), mar. (1) Richard Southwell, Member of Parliament for Askeaton 1661-66 (dvp. bef. Feb 1679/80), 1st son and heir ap. of Sir Thomas Southwell, 1st Bt., by his wife Elizabeth Starkey, dau. of William Starkey, of Dromoland, co. Clare, and (2) John MacNamara, of Cratloe, co. Clare, and had issue by her first husband

2. Lady Honora O'Brien, mar. Theobald [Bourke], 3rd Baron Brittas, and had issue

3. Lady Mary O'Brien, mar. (1) Col Hon Henry Boyle, of Castle Martyr, co. Cork (d. 1693), 2nd son of Roger [Boyle], 1st Earl of Orrery, by his wife Lady Margaret Howard, 3rd dau. of Theophilus [Howard], 2nd Earl of Suffolk, (2) Rear Admiral Sir Thomas Dilkes, and (3) Col John Irwin, and had issue by her first husband

died

9 Sep 1674 (bur. in Limerick Cathedral)

created

21 Oct 1654 Baron O'Brien, of Burren in the County of Clare, and Earl of Inchiquin

suc. by

son

note

known as "An tothaine" (the Incendiary); suc. his father as 6th Baron Inchiquin 29 Dec 1624 and his wardship granted to Patrick FitzMaurice 1628; obtained livery of his lands 1636; Vice-President of Munster 1642 in succession to his father-in-law; a cavalry officer, he fought against the Catholic Irish rebels at the Battle of Liscarrol 1642; initially took the side of Parliament, gaining with General Monck the defeat of the Confederate Irish at the Battle of Mallow 164 ; shortly afterwards he changed sides and declared openly for King Charles 1648; voted a traitor by Parliament 1649 and in the same year appointed President of Munster by King Charles whilst still in exile ; Privy Councillor [I]; from 1650 onwards he lived in France, being excepted from the general pardon issued by Parliament in 1652 ; a Lieut Gen in the French Army, he was appointed by the King of France Viceroy of Catalonia; he and his son were taken captive from an English ship by the Turks and imprisoned in Algiers 1660; restored to all his Irish honours and estates and compensated with 8,000 for losses he had sustained during the Civil War by Act of Parliament 1660

 

William [O'Brien], 2nd Earl of Inchiquin, PC

born

c. 1640

mar. (1)

c. Dec 1665 Lady Margaret Boyle, Lady in Waiting at the Hague to Mary of Orange (b. 1639/40; bur. 27 Dec 1683 in St Martin's-in-the-Fields, co. Middlesex), 2nd dau. of Roger [Boyle], 1st Earl of Orrery, by his wife Lady Margaret Howard, 3rd dau. of Theophilus [Howard], 2nd Earl of Suffolk

children by first wife

1. Hon William O'Brien, later 3rd Earl of Inchiquin

2. Hon ..... O'Brien (d. young)

3. Hon ..... O'Brien (d. young)

1. Lady Margaret O'Brien (d. unm.)

mar. (2)

Hon Elizabeth Herbert (bapt. 25 Mar 1651; widow of Edward [Herbert], 3rd Baron Herbert of Chirbury and 3rd Baron Herbert of Castle Island; mar. (3) bef. Aug 1694 Charles [Howard], 4th Baron Howard of Escrick, and (4) 1712 a "Mr George"; dsp. 3 Feb 1717/8), dau. and cohrss. of George [Brydges], 6th Baron Chandos, by his first wife Lady Susan Montagu, only dau. by his third wife of Henry [Montagu], 1st Earl of Manchester

died

Jan 1691/2 (bur. at St Jago de la Vega, Jamaica)

suc. by

son by first wife

note

captured with his father by the Turks in 1660 and imprisoned in Algiers; Privy Councillor [I] 1670/1-84/5; Capt Gen of the Forces at Tangiers 1674-80; Col, 2nd (Tangier) Regiment of Foot 1675-80; attainted in his absence by the Irish Parliament of King James II in 1689; Governor of Jamaica and Vice Admiral of the Caribbean Seas 1690-92

 

William [O'Brien], 3rd Earl of Inchiquin, PC

born

c. 1666

mar.

Apr 1691 his cousin Hon Mary Villiers, a Maid of Honour (d. 17 Apr 1753), sister of Edward [Villiers], 1st Earl of Jersey, and 6th dau. of Sir Edward Villiers, of Richmond, co. Surrey, Knight Marshal and Governor of Tynemouth Castle, by his first wife Lady Frances Howard, 5th dau. of Theophilus [Howard], 2nd Earl of Suffolk

children

1. Hon William O'Brien, later 4th Earl of Inchiquin

2. Lieut Hon Charles O'Brien RN (d. unm.)

3. Hon James O'Brien (d. 17 Dec 1771), mar. Mary Jephson, dau. of Very Rev William Jephson, Dean of Kilmore, by his wife Anne Hartwell, widow of Capt Samuel Hartwell and dau. of Redmond Barry, and had issue:

1a. Murrough O'Brien, later 5th Earl of Inchiquin later 1st Marquess of Thomond

2a. Lieut Hon John O'Brien RN (d. unm. c. 1788)

3a. Hon Edward O'Brien (d. Mar 1801), mar. Mary Carrick, and had issue:

1b. Murrough O'Brien (d. unm.)

2b. William O'Brien, later 2nd Marquess of Thomond

3b. Vice Admiral Lord James O'Brien RN, granted the style and precedence of the younger son of a Marquess by Royal Warrant 1809, later 3rd Marquess of Thomond

4b. Capt Lord Edward O'Brien RN, granted the style and precedence of the younger son of a Marquess by Royal Warrant 1809 (d. 9 Mar 1824), mar. (1) 1805 Diana Hotham (dsp. 26 Nov 1810), 1st dau. of Gen George Hotham (by his wife Diana Pennyman, yst. dau. of Sir Warton Pennyman, Bt.), yr. brother of Beaumont [Hotham], 2nd Baron Hotham, and 5th son of Sir Beaumont Hotham, 7th Bt., and (2) 11 Apr 1815 Gertrude Grace Methuen (d. 1 May 1817), sister of Paul [Methuen], 1st Baron Methuen, and 2nd dau. of Paul Cobb Methuen MP, of Corsham, co. Wiltshire, by his wife Matilda Gooch, dau. of Sir Thomas Gooch, 3rd Bt., and had issue by his second wife:

1c. Gertrude Matilda O'Brien (d. 17 Dec 1869), mar. 17 Jun 1840 her cousin Rev Thomas Plumptre Methuen, son of Rev Thomas Anthony Methuen, Rector of All Cannings, co. Wiltshire, by his wife Eliza Maria Plumptre, 1st dau. of Rev Henry Plumptre, and had issue

2c. Mary Catherine O'Brien (d. 10 May 1885), mar. 20 Jan 1842 Rev John Hamilton Forsyth, and had issue

Capt Lord Edward O'Brien mar. (3) 16 Apr 1822 Lady Elizabeth Susan Somerset (b. 23 Jun 1798;  mar. (2) 11 Nov 1829 Lt Gen James Orde; d. 16 Apr 1876), 2nd dau. of Henry Charles [Somerset], 6th Duke of Beaufort, by his wife Lady Charlotte Sophia Leveson-Gower, 2nd dau. by his third wife of Granville [Leveson-Gower], 1st Marquess of Stafford, and had further issue:

1c. ..... O'Brien (d. an infant)

5b. Capt John O'Brien (d. unm.)

1b. Lady Mary O'Brien, granted the style and precedence of the daughter of a Marquess by Royal Warrant 1809 (d. 28 Jan 1840), mar. (1) 2 Feb 1780 Sir Richard Eyre Cox, 4th Bt., of Dunmanway, co. Cork, and (2) Jan 1786 Rt Hon William Saurin, Attorney-General for Ireland

2b. Lady Harriet O'Brien, granted the style and precedence of the daughter of a Marquess by Royal Warrant 1809 (b. c. 1775; d. 1 May 1851), mar. 17 Apr 1800 Sir Joseph Wallis Hoare, 3rd Bt., of Annabella, co. Cork, and had issue

1a. Lady Anne O'Brien (d. 19 Jan 1745), mar. 23 Mar 1744 Most Rev Michael Cox DD, Archbishop of Cashel

2a. Lady Henrietta O'Brien, mar. (1) Terence O'Loughlen, and (2) 5 Oct 1769 as his second wife Sir William Vigors Burdett, 2nd Bt., and had issue by her second husband

1. Lady Mary O'Brien (b. 12 Feb 1691/2; d. 10 Feb 1780), mar. 7 Mar 1708/9 Robert [FitzGerald], 19th Earl of Kildare, and had issue

2. Lady Henrietta O'Brien (d. 1730), mar. 1717 Robert Sandford, of Castlerea, and had issue

died

24 Dec 1719 (bur. in Cloyne Cathedral)

suc. by

son

note

like his father, attainted in his absence by the Irish Parliament of King James II in 1689; Governor of Kingsale 1693; signed the declaration and association in defence of King William III after the assassination attempt against the King 1697; Privy Councillor to Queen Anne and King George I; Col of Foot, 1703; Mayor of Kilkenny 1704-05; Governor of Co. Clare

 

William [O'Brien], 4th Earl of Inchiquin, KB PC

born

mar. (1)

29 Mar 1720 his cousin Lady Anne Hamilton, suo jure Countess of Orkney, 1st dau .and hrss. of George [Hamilton], 1st Earl of Orkney, by his wife and second half-cousin once removed Elizabeth Villiers, sometime mistress of King William III, sister of Edward [Villiers], 1st Earl of Jersey, and 1st dau. of Sir Edward Villiers, Knight Marshal, of Richmond, co. Surrey, by his wife first Lady Frances Howard, 5th dau. of Theophilus [Howard], 2nd Earl of Suffolk

children by first wife

1. Hon William O'Brien, styled Lord O'Brien (b. 1725; dvm. 4 Apr 1727)

2. Hon George O'Brien, styled Lord O'Brien (b. 8 Aug 1727; dvm. 26 Apr 1728)

3. Hon Augustus O'Brien, styled Lord O'Brien (dvm. an infant

4. Hon Murrough O'Brien, styled Lord O'Brien later styled Viscount Kirkwall (b. Nov 1731; dvm. 20 Sep 1741)

1. Lady Mary O'Brien, later suo jure Countess of Orkney

mar. (2)

12 Oct 1761 Hon Mary Moore (b. 11 Nov 1731; d. bef. 1793), 2nd dau. of Stephen [Moore], 1st Viscount Mount Cashell, by his wife Alicia Colvill, dau. of Hugh Colvill

died

s.p.m.s. 18 Jul 1777 (bur. in Cloyne Cathedral)

suc. by

nephew

note

Member of Parliament (Whig) for Windsor 1722-27, for Tamworth 1727-34, for Camelford 1741-47 and for Aylesbury 1747-54; Knight of the Bath 1725; Grand Master of English Freemasons 1740-41 ; Governor of Co. Clare 1741-77 and Custos Rotulorum of Co. Clare 1762-77; Gentleman of the Bedchamber to the Prince of Wales 1744-51; Privy Councillor [I] 1753

 

Murrough [O'Brien], 5th Earl of Inchiquin later 1st Marquess of Thomond, KP PC

created

29 Dec 1800 Marquess of Thomond, with a special remainder failing heirs male of his body to his brothers in like manner

2 Oct 1801 Baron Thomond, of Taplow in the County of Buckingham (Peerage of the United Kingdom)

 

The Earldom of Inchiquin was held by the Marquesses of Thomond from 29 Dec 1800 until 3 Jul 1855, when on the death of James [O'Brien], 3rd Marquess of Thomond, 7th Earl of Inchiquin, etc., both the Marquessate of Thomond and the Earldom of Inchiquin became extinct, and the Barony of Inchiquin passed to a distant cousin, Sir Lucius O'Brien, 5th Bt.

 

 First written 19 Jun 2006

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