Additional information is given
in a book called "The History and Antiquities of the Town of Southwell."
originally published in 1819 and reprinted in 1996.
At pages 336 and 337:
Thoroton, in his history of Nottinghamshire, deduces the pedigree of this
family from Simon de Southwell, in the reign of Henry III, through Sir John
de Southwell, in that of Edward I; Robert de Southwell, in that of Edward II;
and so on to that of Henry VI, when most of this family migrated from
Nottinghamshire into Norfolk, Suffolk, and Sussex. Of these were Sir Robert
Southwell, master of the rolls to Henry VIII; and Sir Richard Southwell,
privy counsellor to the same King. In the reign of James I, two of the
Southwells, Thomas and Anthony, went on the King's affairs into Ireland,
where they both became the progenitors of a numerous issue. One of their
descendants, according to Camden, was ennobled by the title of Viscount
Castle Maltress, of the county of Limerick (also see Burke's Genealogical and
Heraldic History of the Peerage Baronetage and Knightage page 2110-2111,
however some dates are not correct). The principal branch of the Southwells
which remained in England, we are informed by the same authority, seated
themselves at King's Weston in Gloucestershire, in the year 1678, having
purchased that manor just before. In Thoroton, is also recorded one John de
Southwell, alias Fysher, (more probably John le Fysher de Southwell) to whom
Arundel, archbishop of York, in the nineteenth of Richard II, granted the
inn, known by the name of the Saracen's head, which was an escheat to the
Archbishop, in right of his manor of Southwell. Of this family, I find, in
other authorities, John de Southwell, member of parliament for Lewes, temp.
Henry VIII; Sir Richard de Southwell one of the executors of the last will of
Thomas, the famous duke of Norfolk, who died in the second year of Queen
Mary; Sir Robert Southwell of Woodrising, in the county of Norfolk, who
married Elizabeth, daughter of Charles Lord Howard of Effingham, in the reign
of Queen Elizabeth; besides many other of inferior counsequence. Among the
MSS. Bennet' college library, is a curious letter dated Sep. 16, 1580, from
John Southwell of Ipswich, to the Archbishop of Canterbury. In Lincoln
cathedral two of the family, High and William, the former spelt Southwell,
the latter Suwell, are buried. The were both prebendaries of that church,
Hugh in 1406, but the stone on which the other was recorded, had no date.
Also from "A Genealogical and Heraldic History of the Commoners of Great
Britain and Ireland" volume I, page 179:
William Lenthall, esq., who m. Francis, Dau of Sir R. Southwell, of St.
Faith's in Norfolk, and left at his decease, 2nd Dec. 1596, aged 44, with
Robert Berkeley wedded, secondly, Jane daughter and co-heir of Sir
William Compton, bart. of Henlip, in the county of Worchester and of
Hartbury, in Gloucestershire, by whom he had two daughters, viz.
Catherine, m. to Robert Canning, esq. of Foxcote, in the county of
Warlock and D. in 1823.
Jane, m. to Thomas-Anthony, present Viscount Southwell.
Same book, volume III, page 509:
Thomas Bedingfeld, of Ditchingham, b. in 1553, who m. Dorothy, daughter
of John Southwell, of Darsham, in Suffolk.
Same book,volume IV, page 104:
Sir George Heneage, of Hainton, m. Elizabeth, daughter and sole heir of
Sir Richard Southwell, but d.s.p. (probably in the early 1600s)
John Hopton of Heyton, in Shropshire, with left by Elizabeth, his wife,
(with five daughters, Elizabeth, wife of William Parker; Anne, wife of
Andrew Kirby; Margaret, wife of William Gardner, Dionesia, wife of Richard
Becham; and Mary, wife of Edward Southwell) (mid-1500s)
Anne Harris, m. Sir Thomas Southwell, knight, of the County of Suffolk