'Owen10'Index links to: Lead / Letter
Families covered: Owen of Cefntreflaeth

                               
Ieuan ap Gruffydd ap Madog ap Iorwerth ap Madog ap Rhirid Flaidd, of Llandwehllyn & Cefntreflaeth (d 1370)
m1. Gwenllian (dau/coheir of Evan ap Howel ap Meredydd ap Einion ap Gwgan ap Merwydd ap Collwyn ap Tangno)
1. Owen
  m. Margaret (dau of Reinallt ap Howel ap Gruffydd ap Dafydd Goch)
A. Evan
  m. Jonet (dau/heir of Robert Ireland by Margaret (or Mary), dau of John ap Meredydd, of Ystumcegid)
  i. Owen 'of Cefntreflaeth'
  m. Agnes (Annes) (dau of Madog Vaughan of Abercain)
a. Howel 'of Cefntreflaeth' (a 1566)
  m. Catherine (dau of Richard ap Dafydd, of Cefn Llanfair)
  (1) John 'of Cefntreflaeth' (a 1612)
  m. Margaret (dau of Owen ap John, of Ystumcegid)
  (A) Owen Jones 'of Cefntreflaeth'
  m. Catherine (dau of Robert ap Rhys Wynn, of Graianog, m2. Morris Wynn of Beddgelert)
(i) John Owen (a 1654)
  m. Grace (dau of Griffith Hughes of Cefn Llanfair)
  (a) Owen Owen 'of Cefn Treflaeth'
  m. Elizabeth (dau of Ellis Morris of Ymwlch)
  ((1)) John Owen 'of Cefn Treflaeth & Trefan' (b c1651, a 1687, vicar of Clynnog, later rector of Llanengan)
  m. Jane (b 1697-8, d 06.02/02.06.1747, dau/heir of John Jones of Trefan)
  ((A)) Owen Owen (dsp 1712)
  m. Catherine (dau of William Wynn of Wern)
  ((B)) John Owen (dsp 1711)
((C)) Elizabeth Owen (bpt 09.07.1676, d 12.04.1740)
  m. Zaccheus Hughes of Nanhoron & Trefan
  ((2)) Griffith Owen (d 1725, 3rd son) ## duplication below? ##
  m. Ann (dau of Owen Vaughan of Abercain)
  ((3)) Grace Owen (bpt 01.18.1663, d 09.02.1732)
  m. (07.01.1685) Ellis Roberts of Ynysgain
  ((A)) Elizabeth of Ynynsgain
  m. Thomas Williams of Llanrwat (d 1685)
  ((i)) Robert Williams
  ((4))+ other issue - William (a 1715, pewterer), Lowry, Jane, Margaret
  (b) Griffith Owen 'of Cefntreflaeth' (a 1704) ## duplication above? ##
  m. Amy (dau of Owen Vaughan)
  (c) Catherine
  m. John Prichard of Tyddynfelin
  (d) Gaynor
  m. Thomas Prichard
  (e) Margaret
  m. William Morris of Llecheiddor
  (f) Jane
  m. John Owen (bur 09.03.1689, rector of Llanystumdwy)
  (ii)+ other issue - Huw, Elin, Margaret
m2. Annes (dau of Llewelyn ap Einion ap Meilir Grug)
The following are shown on Griffith (Tribe of Rhirid Flaidd, p394) as additional sons of Ifan (Ieuan) but are not mentioned on Griffith (p280). Presuming that they were indeed Ieuan's sons, we do not know which of his wives were their mother.
2. Ieuan Vychan
  A. Dafydd
  i. Dafydd Lloyd
  a. Howel Vaughan
  (1) Robert Vaughan of Llanuwchllyn
  ii. Rhys
  a. Edward
  (1) John Edwards of Tre Brysg
3. Rhys
  A. Ieuan
  i. John

Main source(s): Griffith's Pedigrees (Cefn Treflaeth (now called Cefn-issa), p280) with input as reported above
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