Dictionary of Welsh Biography

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IAGO ab IDWAL ap MEURIG (d. 1039 ), king of Gwynedd ;

a great grandson of Idwal Foel (q.v.) . After successive usurpations of legitimate authority in Gwynedd between 986 and 1033 (see Maredudd ap Owain , Llywelyn ap Seisyll , Rhydderch ap Iestyn ) the old line was restored in the person of Iago . A brief rule of six years ended in his murder and replacement by Gruffudd ap Llywelyn ap Seisyll . His son, Cynan , was the father of Gruffudd ap Cynan (q.v.) who finally re-established the house of Rhodri the Great as the senior dynasty in North Wales .


  • 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