Dictionary of Welsh Biography

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IAGO ab IDWAL FOEL ( fl. 942-979 ).

Driven out of Gwynedd by Hywel Dda when Idwal Foel d. in 942 , Iago and his brother, Ieuaf (q.v.) were restored when Hywel d. in 950 . Civil strife followed, ending in Ieuaf 's defeat in 969 : in 979 , Iago was in turn imprisoned by Ieuaf 's son, Hywel ap Ieuaf (q.v.) , who thereupon became king of Gwynedd . Only Iago can be identified with reasonable confidence among the Welsh who, together with other vassal kings , submitted to Edgar , at Chester , in 973 , an event which inspired the legend of Edgar 's triumphal passage along the Dee . The date of his death is unknown. Pedigrees ascribe to him another son, Cystennin , who founded no family.


  • A History of Wales: from the Earliest Times to the Edwardian Conquest


Professor Thomas Jones Pierce, M.A., F.S.A., (1905-1964), Aberystwyth

Published date: 1959