'Gwynne1'Index links to: Lead / Letter
Families covered: Gywn of Abercrave, Gwynne of Glanbran, Gywn of Glyntawe, Gwynne of Llywnhowel, Gwyn of Neath, Gwyn of Trecastell

Nicholas reports that this family "is traced in the pedigrees to Brychan Brycheiniog, through Trahaearn ap Einion, Lord of Cwmmwd, near Talgarth, who lived in the 12th cent." BLG1858 reports that the undermentioned Rhydderch ap Rhys was "9th in direct descent from Trahaern ap Einion, Lord of Cwmwd, co. Brecon".
Rhys ap Philip ap David of Llwynhowel (Llyn Howell)
1. Rhydderch ap Rhys ("who lived early in the 15th century")
  m. Gwenllian (dau/heir of Howel ap Gryffydd, of Trecastle)
  Nicholas reports that "The name Gwyn .. is said first to have appeared in the family with (their) sons, who being of light complexion were called Gwyn, which means "white," or "light in colour," to indicate the peculiarity, and in the case of David, who was red-haired, the epithet coch, "red," was added."
  A. Thomas Gwyn of Trecastell, Breconshire this line is supported by BLG1858 ('Gwyn of Dyffryn')
  m. Elen (dau of Roger Vychan (Vaughan) of Talgarth)
  i. Howel Gwyn of Trecastell
m. Jennett (dau of Gwiliam Llewelyn (Gwilym Llewelyn of Garregfawr))
  a. Thomas Gwyn of Trecastell (d 1584)
  m. Margaret Games (dau/heir of Thomas Games of Newton)
  (1) Howel Gwyn 'of Trecastell, later of Hay Castle'
  m. Mary Boyle (dau/coheir of James Boyle of Hay Castle)
  (A) Edward Gywn of Glyntawe
  m. Mary Llewlyn (dau/heir of Rev. John Llewelyn)
  (i) John Gywn of Abercrave in Glyntawe (2nd son)
  m. Anne Price (dau/heir of Captain Thomas Price (or Prees) of Defynog (Abertreweren))
  (a) James Gwyn of New Radnor
  m. Elizabeth Brewster (dau of William Brewster of Burton Court)
  ((1)) William Gwyn of Neath (d 1749)
  m. Eliza Edward (dau/heir of Hugh Edward of Blaensawdde)
  ((A)) John Gwyn of (d 1780)
m. Priscilla Roach (dau of Matthew Roach of Barnstaple)
  ((i)) William Gwyn of Abercrave (2nd son) had issue
  m1. (1799) Mary Anne Roberts (d 11.01.1819, dau of Edward Roberts of Barnstaple)
  m2. (1822) ??
  ((ii))+ other issue - Matthew, Elizabeth
  (B) Anne Gwyn probably of this generation
  m. Thomas Powell
  (2) Elizabeth Gwyn probably of this generation
  m. Hugh Powell of Castle Madoc (d 1624)
(3) Gwenllian Gwyn probably of this generation
  m. Meredith Games of Buckland
  B. David Goch Gwyn of Glanbran
  The following comes from 'County Families of Wales' (Thomas Nicholas, vol 1, 1872, 'Gwynne-Holford, Mrs. of Buckland, Breconshire', p114+) which notes that one source identifies David's wife Thomas(ine), dau of Morgan Bowen of Llefhdenny, whilst Dwnn identifies her as Elizabeth, dau of Morus ap Owain ap Gruffydd ap Nicholas of Bryn-y-beirdd. We suspect that this was ...
  m. Elizabeth Bowen (dau of Morris ap Owen ap Griffith)
  i. David Gwyn of Glanbran
m. Joan Games (a 1596, dau of John Games of Aberbran, m2. Rosser (Roger) Williams of Park)
  a. Rowland Gwyn or Gwynn of Glanbran
  m. Gwenllian (dau of Howel ap Sion ap Howel of Cwm-dan-ddwr, widow of Thomas Lewis of Harpton)
  (1) Rhydderch Gwynne of Glanbran
  m. Mary Johns (dau of Sir Thomas Johns of Jones of Abermarles)
  (A) Rowland Gwynne of Glanbran (dsp)
(B) Howel Gwynne of Glanbran
  m. Elizabeth Johns (dau of Herbert Johns of Jones, son of Sir Thomas)
  (i) Rowland Gwynne of Glanbran
  (a) Sackville Gwynne of Glanbran (dspm?) 
  (b) Jane Gwynne possibly of this generation
  m. (c1700) Richard Stedman of Strata Florida (d 1703-4, m2. Jane Stedman)
  (ii) Rhydderch (Roderick) Gwynne of Llanfair Cilgydin, Monmouthshire (3rd son)
m. Mary Prichard (dau/heir of Samuel Prichard of Brynioyre)
  (a) Howel Gwynne of Brynioyre
  m. Mary Gwynne (dau/heir of Marmaduke Gwynne of Garth (who d 1708))
  ((1)) Roderick Gwynne of Glanbran (2nd son)
m. Anne Howe (dau of Lord Chedworth)
  ((A)) Thynne Howe Gwynne of Buckland
  ((i)) Roderick Gwynne of Glanbran
  m. Eliza Anne Hughes (dau/heir of T. Hughes of Talgarth)
((a)) Anna Maria Elinora Gwynne
  m. (04.09.1830) James Price Holford, later Gwynne (d 1846, Colonel)
  ((ii))+ other issue - Thynne Howe, Edward, Rebecca
  (iii) Anne Gwynne probably of this generation
  m. John Johnes of Abermead
  (B) Thomas Gwynne probably of this generation
  (i) Catherine Gwynne
  m. Morris Bowen of Llechdwnny
  'The Harstonges and Radnorshire Part 1' in 'Radnorshire Society Transactions 1973' (R.C.B Oliver, p34+), which provides the following (which was first shown in a Temporary page on 02.05.20), shows that a son of Rowland Gwynne of Glanbrane, Carnarvonshire, by Gwenllian Powell of Cwmdeuddwr, was ...
  (2) David Gwynne of Llywnhowel
  m. Joan Morgan of Itton Court, Monmouthshire
(A) George Gwynne of Llywnhowel (d 1673, MP)
  m. Sibil Gwynne (dau/coheir (by Sibil Vaughan of Dunfield) of Roderick Gwynne of Llanelwedd (Sheriff of Breconshire, son of Roderick Gwynne of Llanelwedd by Anne Lewis), "a distant kinswoman")
  (i) Sir Rowland Gwynne (b 1658, d 1726)
  m. Mary Bassett of Bromiscin
  (ii) George Gwynne
  m. Catherine Howorth of Whitehouse in Vowchurch, Herefordshire
  (iii) Joanna Gwynne (b c1650, d 1718)
  m1. (c1667) James Price of Pilleth (d 1677)
  m2. (c1684) Sir Standish Hartstonge, 1st Bart (b 1627, d 27.08.1701, son of Francis by Elizabeth Standish)
  (iv) Sibil Gwynne
  m. Roger Manwaring of Llandovery
  (a) Ann Manwaring
  (a) Sibil Manwaring
m. Sir Humphrey Howorth (MP, nephew of Catherine Howorth (above))
  (v) Anne Gwynne
  m. Daniel Williams of Penpont
  (a) Margaret Williams
  (vi) m. Charles Powell of Castell Madoc
  Elizabeth Gwynne (b 1656, d 1729)
  (a) Elizabeth Powell
  b. Jane Gwynne possibly of this generation
  m. Thomas Mansel of Swansea (a 1632)
  c.+ other issue - Rees of Llwyn-howel, John of Llanelwedd, 3 other children
  C. Howel Gwyn of Ystrad Wallter

Main source(s): 'County Families of Wales' (Thomas Nicholas, vol 2, 1872, 'Gwyn, Howel, Esq., of Dyffryn, Glamorganshire', p629+) with input/support as reported above
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