Sir Thomas Southwell, 1st Baronet

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Thomas Southwell
Baronet Southwell of Castle Mattress
Successor Thomas Southwell, 1st Baron Southwell
DiedMay 1681
Spouse(s)Elizabeth Starkey
Richard Southwell
FatherEdmund Southwell
MotherCatherine Herbert

Sir Thomas Southwell, 1st Baronet, of Castle Mattress (died 7 December 1680) was a high sheriff of County Kerry under the Protectorate.


Birth and origins

Thomas was born in Ireland, the fifth but last surviving son of Edmund Southwell and his wife Catherine Herbert. [1] His grandfather, John Southwell of Barham, had come to Ireland from Suffolk during the reign of James I. [2] His mother was a rich heiress, the only child of Garrett Herbert of Rathkeale.

Family tree
Thomas Southwell with his wife, parents, and other selected relatives. [lower-alpha 1]
of Barham
of Rathkeale

d. 1642
1st Bt

d. 1681

d. 1705


d. 1688
1st Baron


XXXSubject of
the article
XXX Baronets & Barons
*d.v.p. = predeceased his father (decessit vita patris)

Nothing is known of the sisters he probably had.

Marriage and children

Sir Thomas Southwell married Elizabeth Starkey, daughter of William Starkey. She would survive him and die in September 1688. [6]

Thomas and Elizabeth had one son:

  1. Richard Southwell, who married Elizabeth daughter of Murrough O'Brien, 1st Earl of Inchiquin [7]

—and three daughters:

  1. Garthruid, married John Piggot of Kilfinny as his first wife [8]
  2. Margaret, married ___ Piggott [9]
  3. Joan, married Sir William Oughtred Courtenay of Powderham in Devonshire, Baronet [10]

Later life and death

Southwell served as High Sheriff of Kerry, High Sheriff of Clare, and High Sheriff of County Limerick in 1654 under the Protectorate. On 4 August 1662 he was created 1st Baronet Southwell, of Castle Mattress in the Baronetage of Ireland, by Charles II. [11] The castle in the territorial designation stands on the left bank of the River Deel, west of Rathkeale, and is also called Matrix or Matras.

Sir Thomas Southwell died in May 1681 [12] and was buried in Rathkeale. His eldest son, the member of parliament Richard Southwell, predeceased him [13] and he was succeeded by his grandson Thomas as the 2nd Baronet Southwell.

Notes, citations, and sources


  1. Also see the lists of children in the text.


  1. Cokayne 1903, p.  318, line: "... 5th but last surv. [surviving] s. [son] of Edmond Southwell "
  2. Debrett 1828, p.  789: "John Southwell, of Barham, co. Suffolk, esq., removed to Ireland, temp. [in the time of] James I. His grandson, Sir Thomas, was created a bart. of Ireland 1662 ..."
  3. Lodge 1789, p.  16, line 1: "John Southwell of Rathkeale, Esq. who married Anne, eldest daughter and coheir to Sir John Dowdall of Kilfinny in the county of Limerick, by his wife Elizabeth, daughter of Sir Thomas Southwell of Polylong, and being slain by the rebels in 1642, left no issue."
  4. 1 2 Lodge 1789, p.  16, line 6: "William and Ralph, both killed in the Isle of Rhee, under George Villiers, Duke of Buckingham, in his retreat from Rochelle."
  5. Lodge 1789, p.  17, line 4: "Edward, murdered in Holland by his own servant."
  6. Lodge 1789, p.  18, line 7: "... who re-married with John Mcnamara of Cratellow in the county of Clare, Esq., and died in September 1688 ..."
  7. Burke & Burke 1909, p.  1678, right column, line 38: "... an only son, Richard, who predeceased him leaving issue by Elizabeth, dau. [daughter] of Murrough, 1st Earl of Inchiquin ..."
  8. Lodge 1789, p.  17, line 26: "Garthruid, the first wife to John Piggott of Kilfinny, Esq.;"
  9. Lodge 1789, p.  17, line 27: "Margaret, married to ____ Piggot, Esq.;"
  10. Lodge 1789, p.  18, line 1: "Joan to Sir William Oughtred Courtenay of Powderham in Devonshire, Baronet."
  11. Burke & Burke1909, p.  1078, right column, line 36: "... was created a baronet of Ireland, 4 August 1662 ..."
  12. Kilburn 2004, p.  721, left column, line: "On his [the 1st baron's] grandfather's death in May 1681 ..."
  13. Burke & Burke 1909, p.  1678, right column, line 37: "... m. [married] Elizabeth, dau. [daughter] of William Starkey, Esq. of Dromolen, co. Clare, by whom he had with three daus, an only son, Richard, who predeceased him, leaving issue ..."


Baronetage of Ireland
New creation Baronet
(of Castle Mattress)
Succeeded by

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