St Lawrence Paternal Family Tree
Christopher aka Stephen St Lawrence 1st Baron Howth
Christopher St Lawrence 2nd Baron Howth
In or before 1435 m Anne Plunkett of Ratoath in Meath x 1
Died 1465
Christopher St Lawrence 2nd Baron Howth
Anne Plunkett of Ratoath in Meath
Robert St Lawrence 3rd Baron Howth
Born 1435
Married Alice White x 1
1478 m Joan Beaufort Baroness Howth
Died 1488 (53)
Robert St Lawrence 3rd Baron Howth
Mother: Alice White
Nicholas St Lawrence 4th Baron Howth
Born 1460
In or before 1485 m Genet Plunkett Baroness Wenlock x 2
Half Second Cousin
Died 1526 (66)
7 x Great Grand Son of King Edward I of England
Nicholas St Lawrence 4th Baron Howth
Genet Plunkett Baroness Wenlock
Christopher St Lawrence 5th Baron Howth
Born 1485
In or before 1508 m Anne Bermingham of Baldongan x 3
Died 1542 (57)
8 x Great Grand Son of King Edward I of England
Christopher St Lawrence 5th Baron Howth
Mother: Anne Bermingham of Baldongan
Edward St Lawrence 6th Baron Howth
Born 1508
Died 1549 (41)
8 x Great Grand Son of King Edward I of England
Christopher St Lawrence 5th Baron Howth
Mother: Anne Bermingham of Baldongan
Richard St Lawrence 7th Baron Howth
Born 1510
In or before 1558 m Catherine Fitzgerald Viscountess Gormanston
Sixth Cousin
Died 1558 (48)
8 x Great Grand Son of King Edward I of England
Christopher St Lawrence 5th Baron Howth
Mother: Anne Bermingham of Baldongan
Christopher St Lawrence 8th Baron Howth
Born 1511
1546 m Elizabeth Plunkett Baroness Howth x 1
After 1579 m Cecily Cusack Baroness Howth
Died 24 Oct 1589 (78)
9 x Great Grand Son of King Edward I of England
Christopher St Lawrence 8th Baron Howth
Mother: Elizabeth Plunkett Baroness Howth
Nicholas St Lawrence 9th Baron Howth
Born 1550
Before 1568 m Margaret Barnewell x 1
Half Fifth Cousin Once Removed
After 1576 m Mary White x 1
Died 1607 (57)
10 x Great Grand Son of King Edward I of England
Nicholas St Lawrence 9th Baron Howth
Christopher St Lawrence 10th Baron Howth
Born 1568
In or before 1597 m Elizabeth Wentworth Baroness Howth x 2
Died 1619 (51)
10 x Great Grand Son of King John of England
Christopher St Lawrence 10th Baron Howth
Mother: Elizabeth Wentworth Baroness Howth
Nicholas St Lawrence
Born 1597
In or before 1619 m Jane Montgomery x 1
Died 22 Dec 1644 (47)
11 x Great Grand Daughter of King John of England
Mother: Jane Montgomery
Elizabeth St Lawrence Baroness Howth
Born 1619
After 1649 m William St Lawrence 12th Baron Howth x 1
First Cousin
Died 17 Jun 1671 (52)
10 x Great Grand Son of King John of England
Christopher St Lawrence 10th Baron Howth
Mother: Elizabeth Wentworth Baroness Howth
Thomas St Lawrence 11th Baron Howth
Born 1599
Died 05 Aug 1649 (50)
11 x Great Grand Son of King John of England
Thomas St Lawrence 11th Baron Howth
William St Lawrence 12th Baron Howth
Born 1628
After 1649 m Elizabeth St Lawrence Baroness Howth x 1
First Cousin
Died Jun 1671 (43)
12 x Great Grand Son of King John of England
William St Lawrence 12th Baron Howth
Elizabeth St Lawrence Baroness Howth
Coefficient of Inbreeding: 6.25%
Thomas St Lawrence 13th Baron Howth
Born 1659
1687 m Mary Barnewall Baroness Howth x 2
Third Cousin Once Removed
Died 1727 (68)
10 x Great Grand Son of King Edward III of England
Thomas St Lawrence 13th Baron Howth
William St Lawrence 14th Baron Howth
Born 11 Jan 1688
In or after 1727 m Lucy Gorges Baroness Howth x 1
Died 04 Apr 1748 (60)
11 x Great Grand Son of King Edward III of England
William St Lawrence 14th Baron Howth
Mother: Lucy Gorges Baroness Howth
Thomas St Lawrence 1st Earl Howth
Born 10 May 1730
1773 m Isabella King Countess Howth x 2
Died 29 Sep 1801 (71)
12 x Great Grand Son of King Edward III of England
Thomas St Lawrence 1st Earl Howth
William St Lawrence 2nd Earl Howth
Born 04 Oct 1752
01 Jun 1777 m Mary Bermingham x 1
In or before 1803 m Margaret Burke Countess Howth x 3
Died 04 Apr 1822 (69)
13 x Great Grand Son of King Edward III of England
William St Lawrence 2nd Earl Howth
Mother: Margaret Burke Countess Howth
Thomas St Lawrence 3rd Earl Howth
Born 16 Aug 1803
09 Jan 1826 m Emily Burgh Countess Howth
27 Feb 1851 m Henrietta Barfoot Countess Howth x 1
Died 04 Feb 1874 (70)
14 x Great Grand Daughter of King Edward III of England
Thomas St Lawrence 3rd Earl Howth
Mother: Henrietta Barfoot Countess Howth
Henrietta St Lawrence
Born 1851
1881 m Benjamin Lee Guinness x 2
Died 22 Aug 1935 (84)
13 x Great Grand Daughter of King Edward III of England
William St Lawrence 2nd Earl Howth
Mother: Margaret Burke Countess Howth
Elizabeth St Lawrence Lady Borough
Lady Borough of Baseldon Park in Berkshire
Born 21 Sep 1811
Before 12 Apr 1863 m Edward Richard Borough 2nd Baronet x 1
Died 12 Apr 1863 (51)
13 x Great Grand Daughter of King Edward III of England
William St Lawrence 2nd Earl Howth
Mother: Mary Bermingham
Mary St Lawrence
19 May 1803 m William Richard Annesley 3rd Earl Annesley
Died Apr 1827
13 x Great Grand Daughter of King Edward III of England
William St Lawrence 2nd Earl Howth
Mother: Margaret Burke Countess Howth
Catherine St Lawrence
1828 m Charles Boyle x 2
12 x Great Grand Daughter of King Edward III of England
Thomas St Lawrence 1st Earl Howth
Isabella St Lawrence Baroness Sydney
1773 m Dudley Cosby 1st Baron Sydney
Died Oct 1836
10 x Great Grand Son of King Edward III of England
Thomas St Lawrence 13th Baron Howth
Henry Howth
Was killed in a duel 1736
10 x Great Grand Daughter of King Edward I of England
Nicholas St Lawrence 9th Baron Howth
Mother: Mary White
Margaret St Lawrence Countess Fingall
Before 1608 m Jenico Preston 5th Viscount Gormanston x 1
Before 29 Mar 1637 m Luke Plunkett 1st Earl of Fingall
Half Fourth Cousin
Died 16 Nov 1637
7 x Great Grand Daughter of King Edward I of England
Nicholas St Lawrence 4th Baron Howth
Genet Plunkett Baroness Wenlock
Margaret St Lawrence
After 1487 m William Darcy x 1
First Cousin
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