Iago ab Idwal ap Meurig (died 1039) was a Prince of Gwynedd and Powys. He was also referred to as "

King of the Britons The title King of the Britons ( cy, Brenin y Brythoniaid, la, Rex Britannorum) was used (often retrospectively) to refer to the most powerful ruler among the Celtic Britons, both before and after the period of Roman Britain up until the Norm ...

" in the ''

Annals of Ulster The ''Annals of Ulster'' ( ga, Annála Uladh) are annals of medieval Ireland. The entries span the years from 431 AD to 1540 AD. The entries up to 1489 AD were compiled in the late 15th century by the scribe Ruaidhrí Ó Luinín, ...

''. On the death of Llywelyn ap Seisyll in 1023, the rule of Gwynedd returned to the ancient dynasty with the accession of Iago, who was a great-grandson of

Idwal Foel Idwal Foel (Idwal the Bald; died c. 942) or Idwal ab Anarawd (Idwal son of Anarawd) was a 10th-century King of Gwynedd in Wales. A member of the House of Aberffraw, he inherited the throne from his father, Anarawd ap Rhodri. William of Malmesbury ...

. Very little is known about the reign of Iago. He was killed by his own men in 1039 and replaced by Llywelyn ap Seisyll's son,

Gruffydd ap Llywelyn Gruffydd ap Llywelyn ( 5 August 1063) was King of Wales from 1055 to 1063. He had previously been King of Gwynedd and Powys in 1039. He was the son of King Llywelyn ap Seisyll and Angharad daughter of Maredudd ab Owain, and the great-g ...

. Iago's grandson

Gruffudd ap Cynan Gruffudd ap Cynan ( 1137), sometimes written as Gruffydd ap Cynan, was King of Gwynedd from 1081 until his death in 1137. In the course of a long and eventful life, he became a key figure in Welsh resistance to Norman rule, and was remembe ...

later won the throne of Gwynedd, and because his father, Cynan ab Iago, was little known in Wales, Gruffudd was styled "grandson of Iago" rather than the usual "son of Cynan".

References

* 1039 deaths Monarchs of Gwynedd 11th-century Welsh monarchs Year of birth unknown Welsh princes House of Aberffraw {{Wales-bio-stub