Legendary History Prior to 1st Century BC
Beli Mawr and Llyr Llediath in Welsh Pedigrees
The Bartrum "Welsh Genealogies"
Bartrum's "Pedigrees of the Welsh Tribal Patriarchs"
A study in charting medieval citations
The Evolution of the "Padriarc Brenin" Pedigree
Generational Gaps and the Welsh Laws
Minimum Age for Welsh Kingship in the Eleventh Century
The Lands of the Silures
Catel Durnluc aka Cadell Ddyrnllwg
Ancient Powys
The Royal Family of Powys
The Royal Family of Gwynedd
The 5 Plebian Tribes of Wales
Maxen Wledig of Welsh Legend
Maxen Wledig and the Welsh Genealogies
Anwn Dynod ap Maxen Wledig
Constans I and his 343 Visit to Britain
Glast and the Glastening
Composite Lives of St Beuno
Rethinking the Gwent Pedigrees
The Father of Tewdrig of Gwent
Another Look at Teithfallt of Gwent
Ynyr Gwent and Caradog Freich Fras
Llowarch ap Bran, Lord of Menai
Rulers of Brycheiniog - The Unanswered Questions
Lluan ferch Brychan
The Herbert Family Pedigree
Edwin of Tegeingl and his Family
Angharad, Heiress of Mostyn
Ithel of Bryn in Powys
Idnerth Benfras of Maesbrook
Henry, the Forgotten Son of Cadwgan ap Bleddyn
The Muddled Pedigree of Sir John Wynn of Gwydir
The Mysterious Peverel Family
The Clan of Tudor Trevor
The Other "Sir Roger of Powys"
Ancestry of Ieuaf ap Adda ap Awr of Trevor
The Retaking of Northeast Wales
Hedd Molwynog or Hedd ap Alunog of Llanfair Talhearn
"Meuter Fawr" son of Hedd ap Alunog
The Medieval "redating" of Braint Hir
Aaron Paen ap Y Paen Hen
Welsh Claims to Ceri after 1179
The Battle of Mynydd Carn
Trahaearn ap Caradog of Arwystli
Cadafael Ynfyd of Cydewain
Maredudd ap Robert, Lord of Cedewain
Cadwgan of Nannau
Maredudd ap Owain, King of Deheubarth
What Really Happened in Deheubarth in 1022?
Two Families headed by a Rhydderch ap Iestyn
The Era of Llewelyn ap Seisyll
Cynfyn ap Gwerystan, the Interim King
The Consorts and Children of Gruffudd ap Llewelyn
The 1039 Battle at Rhyd y Groes
The First Wife of Bleddyn ap Cynfyn
Hywel ap Gronwy of Deheubarth
The Brief Life of Gruffudd ap Maredudd
Owain Brogyntyn and his Family
The Other Gwenwynwyn
Eunydd son of Gwenllian
Sandde Hardd of Mortyn
The Floruit of Einion ap Seisyllt
The Enigmatic Elystan Glodrydd
The Unofficial "History" of Elystan of Powys
Cowryd ap Cadfan of Dyffryn Clwyd
Owain ap Cadwgan and Nest ferch Rhys - An Historic Fiction?
The "sons" of Owain ap Cadwgan ap Bleddyn
The Betrayal by Meirion Goch Revisited
Gwyn Ddistain, seneschal for Llewelyn Fawr
The Men of Lleyn - How They Got There
Trahaearn Goch of Lleyn
Einion vs Iestyn ap Gwrgan - The Conquest of Glamorgan
The Royal Family of Glamorgan
Dafydd Goch ap Dafydd - His Real Ancestry
Thomas ap Rhodri - Father of Owain "Lawgoch"
The "Malpas" Family in Cheshire
Einion ap Celynin of Llwydiarth
Marchweithian, Lord of Is Aled, Rhufoniog
Osbwrn Wyddel of Cors Gedol
Bradwen of Llys Bradwen in Meirionydd
Ednowain ap Bradwen
Sorting out the Gwaithfoeds
Three Men called Iorwerth Goch "ap Maredudd"
The Caradog of Gwynedd With 3 Fathers
Who Was Sir Robert Pounderling?
Eidio Wyllt - What Was His Birthname?
The Legendary Kingdom of Seisyllwg
The Royal Family of Ceredigion
Llewelyn ap Hoedliw, Lord of Is Cerdin
The Ancestry of Owain Glyndwr
Welsh Ancestry of the Tudor Dynasty
Gruffudd ap Rhys, the Homeless Prince
The Children of Lord Rhys
Maredudd Gethin ap Lord Rhys
The 'Next Heir' of Morgan of Caerleon
Pedigree of the ancient Lords of Ial
The Shropshire Walcot Family
Pedigree of "Ednowain Bendew II"
Pedigree of Cynddelw Gam

         Bartrum offers the following pedigrees under this heading:
         (1) "Marchweithian ap Tangwel ap Lludd ap Llew ap Llyminod angel ap Pasgen ap Urien Rheged"
         (2) "Trahaearn ap Tangwel ap Lludd ap Llen ap Llyminod angel ap Pasgen ap Urien Rheged"
         (3) "Trahaearn...brawd Marchweithian"
          In his note to these pedigrees, he says:
          "Born c. 1020, he was ancestor of a tribe in Rhufoniog, Is Aled which was reckoned one of Pymtheg Llwyth Gwynedd. The pedigrees make him first cousin of Tangno which is quite possible chronologically.  Trahaearn, brother of Marchweithian, had relatively few descendants.  Two marraiges of his descendants are recorded in Dwnn ii, 103, 154, which agree with the statement that he was a brother of Marchweithian.  The main body of his supposed descendants, however, are traced to Hoedliw ap Rhiryd ap Pasgen ap Trahaearn, and most of these pedigrees are deficient."
          We have discussed the part of this pedgree extending backward from Lludd in our analysis of Patriarch #22 and will not repeat it here.  But the chronology does not support the claim that Marchweithian was a first-cousin of Tangno; rather it is consistent with him being a first-cousin of Collwyn.  We place the birth of Marchweithian c. 1015, and suggest his father, Tangwel, was a brother of Tangno and that the father of Tangwel was Cadfael (who is omitted in the pedigree).
           We chart the ancestry of the brothers Marchweithian and Trahaearn as:
                                      850  Pasgen ap Urien
                              878  Llewelyn Llyminiog Angel
                                      910  Lluddoca
                                       945  Cadfael
                                      980  Tangwel
                             l                                      l
              1015  Marchweithian            1020  Trahaearn
         Our analysis of the families which descended from his brother, Trahaearn, finds that the Trahaearn in the string "Hoedliw ap Rhiryd ap Pasgen ap Trahaearn" was not "ap Tangwel" as Bartrum thought[1].  The Trahaearn in this sequence was a son of Pasgen ap Trahaearn ap Tangwel, and the pedigrees of the families who descended from Hoedliw are not chronologically deficient; this Hoedliw was born c. 1185, two generations later than Bartrum placed him.
              The early descendants of Trahaearn are charted as:
                                       1020  Trahaearn
                                         1055  Pasgen
                 l                                                 l
     1085  Rhiryd                              1090  Trahaearn
                l                            _____________l_____
                l                           l                              l  
 1115  Gwenllian[2]      1120  Pasgen              1130  Rhiryd
               =                         l                                 l
   Iorwerth ap Gwgan   1150 Rhiryd                1165  Gwenllian[3]
          1100                         l                                =
                             1185  Hoedliw            Einion Ddu ap Cynwrig
[1] Bartrum charted Hoedliw as a brother of the c. 1115 Gwenllian; both had fathers called Rhiryd ap Pasgen ap Trahaaearn, but two different men of that name
[2] Pen. 139(1), 199 and Pen. 139(2), 90 say Gwenllian ferch Rhiryd ap Pasgen ap Trahaearn married Iorwerth ap Gwgan ap Idnerth ap Edryd.  This Iorwerth was the grandfather of Ednyfed Fychan (c. 1165) and he was born c. 1100
[3] Dwnn ii, 103 says Gwenllian ferch Rhiryd ap Trahaearn ap Pasgen ap Trahaearn married Einion Ddu ap Cynwrig.  Einion Ddu was a brother of Ednyfed Fychan and born c. 1165.