_Idwal Fychan ___________
_Iago K of Gwynedd_______|_________________________
_Cynan ________________|
| | _Gwair __________________
| |_Afendreg _______________|_________________________
_Gruffudd K of Gwynedd_|
| | _Sitric II K of Dublin___
| | _Olaf K of Dublin________|_Slani of Ireland________
| |_Rhanullt of Dublin____|
| | _Dunlang K of Leinster___
| |_Mael-Corcre of Leinster_|_________________________
_Owain K of Gwynedd_|
| | _Gronwy _________________
| | _Edwyn L of Tegeingl_____|_________________________
| | _Owain L of Tegeingl___|
| | | | _Cynfyn Lord of Powys____
| | | |_Iwerydd of Powys________|_UNKNOWN ________________
| |_Angharad of Tegeingl__|
| | _________________________
| | _________________________|_________________________
| |_UNKNOWN ______________|
| | _________________________
| |_________________________|_________________________
|
|--Iorwerth Drwyndwn
|
| _Gwyn ___________________
| _Caradog of Arwystli_____|_________________________
| _Trahaern K of Gwynedd_|
| | | _Gwerystan Lord of Powys_
| | |_UNKNOWN of Powys________|_UNKNOWN ________________
| _Llywarch _____________|
| | | _________________________
| | | _________________________|_________________________
| | |_UNKNOWN ______________|
| | | _________________________
| | |_________________________|_________________________
|_Gwladys ___________|
| _________________________
| _________________________|_________________________
| _______________________|
| | | _________________________
| | |_________________________|_________________________
|_UNKNOWN ______________|
| _________________________
| _________________________|_________________________
|_______________________|
| _________________________
|_________________________|_________________________
Bartrum's "Welsh Genealogies".
Paul Reed commented:
. Iorwerth Drwyndwn [flatnose], son by the first 'wife' Gwladus f.
Llywarch, was father of LLYWELYN ap Iorwerth [both the _Handbook of
British Chronology_ and Lloyd's _History of Wales_ state that Llywelyn
was born in 1173] and Adda ap Iorwerth. He married the daughter of
Madog ap Meredydd, Prince of Powys. One account states that Iorwerth
was excluded from his share in the succession because of his deformity,
and was driven out of Gwynedd, meeting an untimely demise in Powys.
But an elegy upon him by Seisyll Brffwrch calls him ruler of Arfon, and
his grave is said to be in the church of Llandudclud [now Penmachno]
at the head of the Conway Valley. Lloyd also thinks there is good reason
to believe he held the commote of Nanconwy with the castle of
Dolwyddelan. Wynne says Iorwerth received the hundreds of Nanconwy
and Ardydwy as his inheritance, and that he dwelled at the castle of
Dolwyddelan, where it is though his son Llywelyn might have been born.
Iowerth was his father's heir, but his nickname seems to suggest that he
suffered from some disability which apparently disqualified him, at
least in the eyes of some, for the kingship. As a result when his father
died in 1170, Gwynedd was divided between several of his descendants.
King HENRY II (RIN 761) of England recognized Iowerth's half brother,
Dafydd as king. By about 1194, however, division was so rife in all of
Wales, including Gwynedd, that Dafydd was actually able to exercise
control only over an area known as the Perfeddwlad. This set the scene
for the arrival on the scene of the man who again unite the Welsh -
LLYWELYN THE GREAT, Iowerth's son.