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Legendary History Prior to 1st Century BC
Beli Mawr and Llyr Llediath in Welsh Pedigrees
Papers Related to Maxen Wledig
Bartrum's "Pedigrees of the Welsh Tribal Patriarchs"
Britain's Royal Roman Family
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2nd Powys Royal Dynasty
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Men Descended from Tudwal Gloff
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Royal Family of Brycheiniog
15 Noble Tribes of Gwynedd
The 5 Plebian Tribes of Wales
Glast and the Glastening
Papers about Rhiryd Flaidd and Penllyn
The Men of Collwyn ap Tangno of Lleyn
Edwin of Tegeingl and his Family
Ednowain Bendew in Welsh pedigrees
Ithel of Bryn in Powys
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Tudor Trefor and his Family
Trahaearn ap Caradog of Arwystli
The Family of Trahaearn ap Caradog
Cadafael Ynfyd of Cydewain
Maredudd ap Owain, King of Deheubarth
Sandde Hardd of Mortyn
The Floruit of Einion ap Seisyllt
The 5 Dafydd Llwyds of Llanwrin Parish
Cowryd ap Cadfan of Dyffryn Clwyd
Osbwrn Wyddel of Cors Gedol
Bradwen of Llys Bradwen in Meirionydd
Who Was Sir Robert Pounderling?
Sir Aaron ap Rhys
Eidio Wyllt - What Was His Birthname?
Ifor Bach, Lord of Senghenydd
Ancestors and Children of the Lord Rhys
       Bartrum offered two different pedigrees under the above heading:
       (1) "Peredur peisswyn arglwydd Kredigion ap Ednyfed Meirionydd ap Einudd bach"
       (2) "Predur peisswerdd arglwydd Keredigion uchaf ap Einion ap Evydd ap Pill ap Sanddef ap Gwyddno garanhir arglwydd Keredigion"
        In his notes to the pedigrees, he states:
        "Peredur Beiswyn and Peredur Beiswyrdd were probably brothers, perhaps twins, but if so, they have been so thoroughly confused that it would be hard now to distinguish them.  Note that older texts generally treat pais as masculine.  The dates of Gwaithfoed of Ceredigion, Rhys Chwith and Cadwgan Fantach poinht to a date of about 970 for the birth of Peredur.  In Lhuyd's Parochialia 1. 7 we find:
       'Predyr Peiswyrdh, Ld of higher Cardigan, had a place or Pallace called Kayro, viz: Lhys Predyr ynghayro'
        "According to E, Phillimore in Owen's Pembrokeshire ii, 603 this must have been at or near Aber Caero in Llanfihangel, Geneu'r Glyn.
        "In [pedigree (2)] Evydd is probably a corrupt form of Einudd"
        In his later work Welsh Genealogies AD 300-1400, Bartrum abandons his belief about two brothers named Peredur and attaches all the ensuing families to a composite Peredur.  We think there were two brothers which we separate by the lands held by the descendants of each.  Men said to descend from Peredur Beisgwyn were all found in Ceredigion, while the immediate descendants of Peredur Beiswrydd remained in Meirionydd where his ancestors had lived for centuries.
        We would reject pedigree (1) above since Eunydd Bach (without the nickname) appears in the ancestry of the first Einion ap Seisyllt as "Seisyllt ap Ednowain ap Eunydd ap Brochwel" etc.[1]  This is another family of Meirionydd, but a cousin line of the Peredur brothers whose closest common ancestor was Gwyddno ap Cadwaladr ap Cynan of c. 830
         Pedigree (2) above agrees exactly (if we delete "garanhir" after Gwyddno) with our charts; the brothers were sons of Einion ap Eunydd ap Pyll ap Sandde ap Gwyddno.  Their father, Einion ap Eunydd, had inherited lands in far north Ceredigion from his mother Morfydd ferch Odwin[2].  We believe Peredur Beiswrydd was the youngest sibling and inherited the paternal manor in Meirionydd, while Peredur Beisgwyn received the Ceredigion lands. A third son of Einion ap Eunydd (and perhaps the eldest) was, we think, Cynddelw ap Einion who is treated separately in this series of papers on "Patriarchs".
          Bartrum dates the Peredur brothers a generation too early.  We assign them birthdates c. 995 and 1000 and suggest the older of the two was Peredur Beisgwyn.  He was the ancestor of Rhys Chwith and Cadwgan Fantach, while we think both Gwaithfoed of Merionydd and Gwaithfoed of Ceredigion descended from Peredur Beiswrydd. 
          The nicknames born by the Peredur brothers are probably misspelled, being neither "peis" nor "beis" but originally "pais" or "bais" meaning coat.  It may not have applied to clothing, but to a coat of arms...that is, to the principal color on the shields they carried into battle: one white and one red.
          We would assign Cadifor[3], a Meirionydd man, as the only son of Peredur Beiswrydd while Edelfrych[4], Pyll[5] and Gwylfyw[6] were men of Ceredigion and sons of Peredur Beisgwyn.

[1] There are separate papers in this "Patriarchs" series for Eunydd Bach and Seisyll of Meirionydd
[2] For this marriage, see the paper "Sorting out the Gwaithfoeds"at the link below:
[3] This Cadifor was the ancestor of both Gwaithfoed of Meirionydd and Gwaithfoed of Ceredigion
[4] Edelfrych was the ancestor of the first Cadwgan Fantach
[5] Pyll was the ancestor of Cadwgan Fantach II
[6] Gwylfyw was the ancestor of Rhys Chwith