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Howth, Earl of (I, 1767 - 1909)


Creation: let.pat. 3 Sep 1767


Extinct: 9 Mar 1909


Family name: St Lawrence




Gules two Swords in saltire blades upwards proper Hilts and Pommels Or between four Roses Argent barbed and seeded proper


A Sea Lion per fess Argent and proper


Dexter: A Sea Lion per fess Argent and proper;  Sinister: A Mermaid holding in her exterior hand a Mirror all proper


 Qui pense



Thomas [St Lawrence], 15th Baron Howth later 1st Earl of Howth, PC

1st son and heir of William [St Lawrence], 14th Baron Howth, by his wife Lucy Gorges, 2nd dau. of Lieut Gen Richard Gorges, of Kilbrew, co. Meath


10 May 1730


17 Nov 1750 Isabella King (b. 2 Aug 1729; d. 20 Oct 1794), sister of Edward [King], 1st Earl of Kingston, and dau. of Sir Henry King, 3rd Bt., by his wife Isabella Wingfield, sister of Richard [Wingfield], 1st Viscount Powerscourt, and dau. of Edward Wingfield, of Powerscourt, co. Wicklow


1. Hon William St Lawrence, later 2nd Earl of Howth

2. Hon Henry St Lawrence (dvp. 1787)

3. Rt Rev Hon Thomas St Lawrence DD, Bishop of Cork and Ross 1807-31 (b. 1755; d. 10 Jan 1831), mar. Frances Coghlan, 1st dau. and cohrss. of Rev Henry Coghlan DD, and had issue:

1a. Rev Thomas St Lawrence (dsp. 1833), mar. 1815 Harriet Gary, dau. of Lt Gen John Gary

2a. Ven Edward St Lawrence, Archdeacon of Ross (dsp. 21 Jun 1842), mar. Elizabeth Colthurst, 1st dau. of Sir Nicholas Colthurst, 3rd Bt. MP, of Ardrum, co. Cork, by his wife Harriet La Touche, 2nd dau. of Rt Hon David La Touche MP, of Marlay, co. Dublin

3a. Rev Robert Kingsborough St Lawrence, Rector of Moragh (b. 29 Sep 1797; dsp. Jun 1886), mar. 3 Sep 1850 Elizabeth Anne Townsend (b. c. 1790; d. 13 Jan 1885), dau. of R B Townsend, of Castle Townsend, co. Cork

1a. Emma St Lawrence (d. 1865), mar. 1805 Rev W L Beaufort, LL.D.

2a. Isabella St Lawrence (d. 1830), mar. 1808 Rt Rev John Leslie DD, Bishop of Kilmore, and had issue

3a. Letitia St Lawrence (d. 1833), mar. 1830 Rev R J Rothe

4a. Frances Elizabeth St Lawrence (d. 1871), mar. 1836 R M Toghe, of Mitchelstown, co. Westmeath

1. Lady Isabella St Lawrence (b. 30 Aug 1751; dsp. 28 Oct 1836), mar. 16 Nov 1773 Dudley Alexander Sydney [Cosby], 1st Baron Sydney of Leix

2. Lady Elizabeth St Lawrence (d. 1799), mar. 1786 Sir Paulus Aemilius Irving, Bt.

3. Lady Frances St Lawrence (d. 1842), mar. 1808 Ven James Phillott DD, Archdeacon of Bath


29 Sep 1801 (bur. at St James's Church, Bath)


3 Sep 1767 Viscount St Lawrence and Earl of Howth

suc. by



suc. his father 4 Apr 1748 as 15th Baron Howth; Bencher, King's Inn, Dublin 1767; Privy Councillor [I] 1768; granted a yearly pension of £500 in consideration of his own and his ancestors' services 1776


William [St Lawrence], 2nd Earl of Howth


4 Oct 1752

mar. (1)

1 Jun 1777 Lady Mary Bermingham (b. 26 Oct 1752; dspm. 20 Jul 1793), 2nd dau. and cohrss. in her issue of Thomas [Bermingham], 1st Earl of Louth, by his second wife Margaret Daly, dau. of Peter Daly, of Queensbury, co. Galway

children by first wife

1. Lady Harriet St Lawrence (d. 1830), mar. 1801 A F St George, of Tyrone, co. Galway, and had issue

2. Lady Isabella St Lawrence (d. Apr 1827), mar. 19 May 1803 (div. by Act of Parliament 8 Jun 1821) as his first wife William Richard [Annesley], 3rd Earl Annesley, and had issue

3. Lady Matilda St Lawrence (d. 1849), mar. Maj William Burke, of Queensborough

4. Lady Mary St Lawrence (d. 1825), mar. Clifford Trotter

mar. (2)

Margaret Burke (b. c. 1775; d. 19 Sep 1856), dau. of William Burke, of Keelogues, co. Galway, by his wife Margaret Coleman, dau. of Thomas Coleman, of Tuam

children by second wife

1. Hon Thomas St Lawrence, later 3rd Earl of Howth

5. Lady Catherine St Lawrence (d. 4 Apr 1879), mar. 18 Mar 1828 Hon Charles Boyle, styled Viscount Dungarvan (b. 5 Dec 1800; dvp. 25 Aug 1834), 2nd but 1st surv. son and heir ap. of Edmund [Boyle], 8th Earl of Cork, by his wife and cousin Isabella Henrietta Poyntz, 3rd dau. of William Poyntz, of Midgham, co. Berkshire, and had issue

6. Lady Elizabeth St Lawrence (d. 1863), mar. 1831 Sir Edward Richard Borough, Bt.


4 Apr 1822 (bur. at Howth, co. Dublin)

suc. by

son by second wife



Thomas [St Lawrence], 3rd Earl of Howth, KP


16 Aug 1803

mar. (1)

9 Jan 1826 Lady Emily de Burgh (b. 13 Aug 1807; d. 4 Dec 1842; bur. at Howth, co. Dublin), 2nd dau. of John Thomas [de Burgh], 13th and 1st Earl of Clanricarde, by his wife Elizabeth Burke, 3rd dau. of Sir Thomas Burke, 1st Bt., of Marble Hill, co. Galway

children by first wife

1. Hon William Ulick Tristram St Lawrence, later 4th Earl of Howth

1. Lady Emily St Lawrence (d. 6 Nov 1868), mar. 26 Oct 1859 Thomas Gaisford, of Offington, co. Sussex, and had issue

2. Lady Catherine Elizabeth St Lawrence, mar. 1850 J J Wheble, of Bulmershe Court, co. Berkshire, and had issue

3. Lady Mary St Lawrence (dvp. 15 Nov 1864)

4. Lady Margaret St Lawrence (dsp. 9 Jan 1884), mar. 20 Jun 1861 Sir Charles Compton William Domvile, 2nd Bt.

mar. (2)

27 Feb 1851 Henrietta Elizabeth Digby Barfoot (d. 5 Mar 1884; bur. at Howth, co. Dublin), only dau. of Peter Barfoot, of Midlington House, co. Hampshire, and Landenstown, co. Kildare, by his wife Henrietta Anne Digby, 1st dau. and cohrss. of John Digby, of Landenstown, co. Kildare

children by second wife

2. Capt Hon Thomas Kenelm Digby St Lawrence (b. 12 Dec 1855 ; d. 8 May 1891)

5. Lady Henrietta Eliza St Lawrence (d. 22 Aug 1935), mar. 6 Sep 1881 Capt Benjamin Lee Guinness (b. 4 Aug 1842; d. 2 Feb 1900), brother of Arthur Edward [Guinness], 1st Baron Ardilaun, 2nd son of Sir Benjamin Lee Guinness, 1st Bt. MP, by his wife Elizabeth Guinness, 3rd dau. of Edward Guinness, of Dublin, and had issue

6. Lady Geraldine Digby St Lawrence


4 Feb 1874 (bur. at Howth, co. Dublin

suc. by

son by first wife


Knight of St Patrick 1835; Vice Admiral of the Province of Leinster; Lord Lieutenant of co. Dublin 1851-74


William Ulick Tristram [St Lawrence], 4th Earl of Howth, KP


25 Jun 1827


9 Mar 1909 (bur. at Howth, co. Dublin)


7 Oct 1881 Baron Howth, of Howth in the County of Dublin (Peerage of the United Kingdom)


Capt, 7th Hussars 1847-50; High Sheriff of co. Dublin 1854; State Steward to the Lord Lieutenant of Ireland 1855-58 and 1859-66; Member of Parliament (Liberal) for Galway Borough 1868-74; Vice Admiral of the Province of Leinster; Knight of St Patrick 1884


On the death of the 4th Earl of Howth the Earldom of Howth became extinct.


 First written 30 Oct 2004



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