Iago ab Idwal, King of the Britons

974 - 1039  (65 years)

• Name	Iago ab Idwal
  Title	King of the Britons
  Birth	974	Yorkshire, England
  Gender	Male
  Death	1039	Yorkshire, England
  Person ID	I9549	footsteps
  Last Modified	1 Jul 2025

  
  

  Father	Idwal ap Meurig,   b. 945, Yorkshire, England d. 996, Yorkshire, England (Age 51 years)
  Relationship	natural
  Marriage	Yorkshire, England
  Family ID	F5163	Group Sheet  |  Family Chart

  
  

  Family	Afandreg ferch Gwair,   b. 974, Yorkshire, England d. 1053, Yorkshire, England (Age 79 years)
  Marriage	1013	Yorkshire, England
  Children	+ 1. Cynan ab Iago, King of Gwynedd ,   b. Bef 1019, Caervonshire, Wales d. Abt 1060, County Dublin, Ireland (Age > 41 years)  [Father: natural]  [Mother: natural]
  Family ID	F5164	Group Sheet  |  Family Chart
  Last Modified	1 Jul 2025

  
  

• Notes

  Iago ab Idwal ap Meurig (died 1039) was a Prince of Gwynedd and Powys. H e w a s a l s o referred to as "King of the Britons" in the Annals of Ulster . On the death of Llywelyn ap Seisyll in 1023, the rule of Gwynedd return e d t o t h e a ncient dynasty with the accession of Iago, who was a great-g r a nd s o n of Idwal Foel. Very little is known about the reign of Iago. He was killed by his own m e n i n 1 0 3 9 and replaced by Llywelyn ap Seisyll's son, Gruffydd ap Llywe l y n. I a g o's grandson Gruffudd ap Cynan later won the throne of Gwynedd, a n d b e c a use his father, Cynan ab Iago, was little known in Wales, Gruffu d d w a s s t yled "grandson of Iago" rather than the usual "son of Cynan".