ARWYSTLI DYNASTY [1]
CHART IV
975 Gwyn ap Collwyn[2]===dau vz Gwerystan
l
ap Gwaethfoed 990
1005 Caradog
CHART II
l
1035 Trahaearn[3]====Nest vz Gruffudd
l ap Llewelyn 1050
_____________l______
____ CHART III
l
l
1063 Ieuan (base son) 1070
Llywarch[4]==Dyddgu vz Iorwerth
l
l ap Cadwgan
1085
1095 Dafydd l
CHART V
l
l
1125 Dafydd Fychan
1110 Robert==Dyddgu vz Madog
l l
ap Idnerth 1120
l
l CHART
V
l
l
1155 Sian[6]
1143 Maredudd[5]
=
l
Iorwerth ap Einion 1140 1180 Dyddgu
CHART I =
Trahaearn ap Iorwerth 1170
CHART I
The Charts cross-referenced above can be seen by clicking on the appropriate
links which follow the notes below
NOTES:
[1] This family shares a common ancestor (Tegonwy ap Teon of c. 735) with
the Buellt/Fferlys Dynasty and the 2nd Powys Dynasty
[2] The marriage of Gwyn ap Collwyn to an unnamed daughter of Gwerystan made
Caradog ap Gwyn a first-cousin to Bleddyn ap Cynfyn ap Gwerystan. The Brut entry for 1075 calls Trahaearn
ap Caradog a cousin of Bleddyn, but their relationship was first-cousin-once-removed. Bartrum infers that Caradog ap
Gwyn must have married a daughter of Gwerystan, but the chronology doesn't work. Nor would it explain how Cynwrig ap
Rhiwallon ap Gwyn got his claim to share the kingship with Trahaearn; both men were great-grandsons of Nest ferch Cadell ap
Brochwel ap Aeddan
[3] Trahaearn ap Caradog was made interim King of Powys following the death
of Bleddyn in 1075. It was his father's maternal descent from Nest ferch Cadell ap Brochwel that gave Trahaearn
a claim to kingship; his marriage to the daughter of Gruffudd ap Llewelyn alone would not have made him eligible.
[4] Owain, the eldest son of Trahaearn, inheirited the Arwystli lordship
while Llywarch received the lordship of Cydewain
[5] The Maredudd ap Robert in this chart is NOT the Maredudd ap Robert,
Lord of Cydewain who died in 1244. This Maredudd ap Robert's sons were all illigitimate, and on his death, the lordship
of Cydewain went to his nephew, Maredudd ap Robert ap Robert. See the paper "Maredudd ap Robert, Lord of Cydewain "
at the link below:
[6] Medieval genealogists misidentified the wife of Iorwerth ap Einion.
She was Sian, daughter of Dafydd Fychan ap Dafydd....but certainly not the man of that name from Bacheldre. That man
was born c. 1300 and the manor of Bacheldre was not in existence in the 12th century, having been built by Cadwaladr ap Meurig
about 1260
SOURCES:
[1] ABT 2a, 13 & 14 for the ancestry of Trahaearn and of Maredudd ap Robert
[2] Brut y Tywysogyon 1975 for the implied marriage to granddaughter of the former
king of Powys
[3] Dwnn ii, 107 for the marriage of Trahaearn to the daughter of King Gruffudd
ap Llewelyn
[4] Dwnn ii, 24 for the marriage of Llywarch
[5] ABT 14 for the marriage of Robert ap Llywarch
[6] Dwnn i, 111 & Visitation of Shropshire of 1623 for the marriage of Dyddgu
ferch Maredudd
[7] Dwnn i, 274 identifies (somewhat corruptly) the actual Sian ferch Dafydd
Fychan that married Iorwerth ap Einion. Both Iorwerth and his son, Trahaearn, married ladies of the Arwystli dynasty
