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 Norma ...

" 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. 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. Iago's grandson Gruffudd ap Cynan later won the throne of Gwynedd, and because his father,

Cynan ab Iago Cynan ab Iago (c. 1014 c. 1063) was a Welsh prince of the House of Aberffraw sometimes credited with briefly reigning as King of Gwynedd. His father, Iago ab Idwal ap Meurig, had been king before him and his son, Gruffudd, was king after him. I ...

, 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