Thomas St Lawrence, 13th Baron Howth
Thomas St Lawrence, 13th Baron Howth (1659–1727) was an Irish nobleman of the later Stuart and early Georgian era.
He was born in 1659, eldest son of
William St Lawrence, 12th Baron Howth, and Elizabeth Fitzwilliam.
He was only twelve when his father died, and during his minority he was under the guardianship of Thomas Butler, 6th Earl of Ossory, who had been his father's closest friend.
Nicholas St Lawrence, 4th Baron Howth
Nicholas St Lawrence, 4th Baron Howth( c. 1460 – 1526) was a leading Irish soldier and statesman of the early Tudor period, who held the office of Lord Chancellor of Ireland.
Christopher St Lawrence, 5th Baron Howth
Christopher St Lawrence, 5th Baron Howth( c.1485–1542) was an Anglo- Irish nobleman and statesman of the Tudor era.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
William St Lawrence, 4th Earl of Howth
William Ulick Tristram St Lawrence, 4th Earl of Howth KP( 25 June 1827 – 9 March 1909) was an Irish peer, styled Viscount St Lawrence until 1874.
He became Earl of Howth in 1874 on the death of Thomas St Lawrence, 3rd Earl of Howth, and was appointed a Knight of the Order of St Patrick on 8 May 1884.
The family titles became defunct as he died without heir.
Richard St Lawrence, 7th Baron Howth
Richard St Lawrence, 7th Baron Howth( c.1510-1558) was an Anglo- Irish nobleman and military commander of the Tudor era.
William St Lawrence, 14th Baron Howth
William St Lawrence, 14th Baron Howth( 1688- 1748) was an Irish peer and politician, who enjoyed the friendship of Jonathan Swift.
William St Lawrence, 12th Baron Howth
William St Lawrence, 12th Baron Howth (1628–1671) was an Irish nobleman of the Restoration period.
He was an intelligent and popular man who would undoubtedly have played an influential role in Irish politics had it not been for his premature death.
Though some sources refer to him as the nephew of the 11th baron, the weight of evidence is that he was the only surviving son of
Nicholas St Lawrence, 11th Baron Howth and Jane Montgomery, daughter of George Montgomery, Bishop of Derry and his first wife Susan Steyning.
He was born in 1628.
The St Lawrence family had inherited estates near Colchester from William's grandmother Elizabeth Wentworth, which presumably explains why he was sent to Colchester Grammar School, which he entered in 1639.
His father died at the height of the English Civil War; as he was a staunch Royalist, his property had suffered considerably from attacks by the Parliamentary forces.
William himself is said to have been left in peace after his father's death, despite serving briefly with the Royalist forces.
In 1660 he used his political influence to support the Restoration of Charles II, and was recommended to the King by James Butler, 1st Duke of Ormonde as a military commander.
He was appointed Custos Rotulorum for Dublin in 1661, and sat in the Irish House of Lords on several committees including the Committee for Grievances.
In 1665 he is found acting in a judicial capacity at the general sessions in Kilmainham.
He was on good terms with Ormond's successor as Lord Lieutenant of Ireland, John Robartes, 1st Earl of Radnor, and entertained him at Howth Castle in 1669.
He fell ill in 1671 and died in June of that year.
His last will, dated May 14 1671, contains evidence of his wide circle of gifted friends including Thomas Butler, 6th Earl of Ossory (whom he appointed his children's guardian), John Keating, the future Lord Chief Justice of Ireland, and the leading physician Nicholas Henshaw.
He was buried, by his own direction, in a new vault in St. Mary's Church, Howth.
He married his cousin Elizabeth St Lawrence, widow of Colonel Fitzwilliam.
Their children were:
Arthur Blennerhassett (1687–1758)
Arthur Blennerhassett KC (1687 – 3 January 1758) was an Anglo-Irish lawyer and politician.
He was son of the politician and lawyer Robert Blennerhassett of.
Clonmel, County Tipperary, and Alice Osborne, daughter of Sir Thomas Osborne, 5th Baronet and Katherine Butler, and widow of Thomas Warter.
He was at school in Dublin and graduated from the University of Dublin in 1708.
The same year he entered the Middle Temple.
He was called to the Irish Bar in 1714, made King's Counsel in 1728, and served as Prime Serjeant in 1742.
In 1727 Blennerhassett was elected to the Irish House of Commons as Member of Parliament for Tralee.
He was raised to the bench as a justice of the Court of King's Bench (Ireland) in 1743 and served until his death in 1758.
He married firstly Mary Pope, daughter of Captain Richard Pope and Anne Ingolsby, and secondly Mary Rice, daughter of Edward Rice and widow of Colonel William Degge; on her mother's side she was a granddaughter of
Thomas St Lawrence, 13th Baron Howth.
He had no children by either marriage.
He lived at Dawson Street in Dublin and Riddlestown Park in County Limerick, which he inherited from his uncle Edward Blennerhassett, who married the heiress Elizabeth Windall.
Arthur made extensive improvements to Riddlestown.
According to Elrington Ball he was falsely accused of the murder of John St Leger, a younger son of Viscount Doneraile, who was killed in a duel in 1720.
A portrait of the judge hangs in the library of Glin Castle.
Walter St. Lawrence
Walter St. Lawrence( c.1445–1504) was an Anglo- Irish nobleman, lawyer and judge.
He held the offices of Attorney General for Ireland and Chief Baron of the Irish Exchequer.
He was one of the younger sons of Christopher St Lawrence, 2nd Baron Howth and Anne Plunket.
His eldest brother Robert St Lawrence, 3rd Baron Howth was born before 1435; if, as Elrington Ball, suggests Walter was the youngest of his parents' six sons this would suggest a birthdate around 1445.
His father had been a committed supporter of the House of York and had been rewarded for his loyal services to the dynasty by Edward IV, but Walter's eldest brother Robert married as his second wife Joan Beaufort, a cousin of the future Henry VII, and after the accession of the Tudors the St Lawrence family were reliable supporters of the new dynasty.
Walter's nephew Nicholas St Lawrence, 4th Baron Howth was one of the few among the Anglo- Irish nobility who did not support the claims of the pretender Lambert Simnel to be the rightful King of England, and after the defeat of Simnel's cause at the Battle of Stoke in 1487, the family's rewards included Walter's appointment as Attorney General in 1491.
At the second landing of Perkin Warbeck, another pretender to the Crown, in Ireland in 1495, Walter played an active part in the defence of Dublin.
Again he received his reward:
Ball suggests that his appointment as Chief Baron of the Exchequer the following year was the personal choice of the King.
He held that office until his death in 1504.

Question: When was Thomas St Lawrence, 13Th Baron Howth's father born?
Answer: 1628