http://en.wikipedia.org/wiki/Iago_ab_Idwal

Iago ap Idwal (ruled 950 - 979) was a King of Gwynedd and possibly Powys, also referred to as "King of the Britons" by the Annals of Ulster.

Iago was the son of Idwal Foel, and on his father's death in battle in 942 would have expected to succeed to the rule of Gwynedd together with his brother Ieuaf ab Idwal. However Hywel Dda King of Deheubarth took the opportunity to invade Gwynedd and dispossess the young princes.

On Hywel's death in 950 Iago and Ieuaf were able to claim the throne of Gwynedd, driving out the sons of Hywel. Fighting continued between the two dynasties, with Iago and Ieuaf raiding as far south as Dyfed in 952 and the sons of Howell raiding as far north as the Conwy valley in 954 before being defeated in battle at Llanrwst and chased back to Ceredigion.

The sons of Idwal quarrelled and Iago took Ieuaf prisoner in 969. Despite a temporary defeat in 974 Iago ruled Gwynedd until 979 when he in turn was taken prisoner by Ieuaf's son, Hywel ab Ieuaf, who took over his kingdom. There appears to be no record of Iago's fate.

Iago was the father of Cynan ab Iago.

--------------------

• Iago ap Idwal (I)

born about 0908 Gwynedd, Wales

father:

• Idwal "Foel""The Bald" Ap Anarawd Prince of North Wales

born about 0883 Aberffro, Malltraeth, Anglesey, Wales died 0942

mother:

• Mereddon Verch Cadwr

born Abt 0887 Of Gwynedd, Wales

siblings:

• Meurig Ap Idwal born Abt 0917 Of Aberffro, Malltraeth, Anglesey, Wales died 0986

Rhodri Ap Idwal born Abt 0910 Of Gwynedd, Wales died 0968 Idwal "Fychan" Ap Idwal born Abt 0912 Of Gwynedd, Wales Ieuaf Ap Idwal born Abt 0915 Of Gwynedd, Wales died 0985 Cynan Ap Idwal born Abt 0915 Of Gwynedd, Wales

spouse: unknown

children:

• Angharad verch Iago born about 0948 Gwynedd, Wales

Custennin "Ddu" ap Iago born about 0935 Gwynedd, Wales died 0980 Owain ap Iago born about 0940 Bromfield, Maelor Gymraeg, Denbighshire, Wales

biographical and/or anecdotal:

notes or source: LDS

John Edward Lloyd (1911). A history of Wales: from the earliest times to the Edwardian conquest. Longmans, Green & Co.