Dictionary of Welsh Biography

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DAFYDD ap IEUAN ap IORWERTH (d. 1503 ), bishop of S. Asaph ,

was, according to the pedigrees, descended from Tudur ap Rhys Sais . The family was seated in Trefor , near Llangollen , perhaps in ‘ Gavella Rosseriet ’ ( G. P. Jones , Extent of Chirkland , 15). He became warden of Ruthin and abbot of Valle Crucis , succeeding in the latter office John ap Richard ( Pen. MS. 176, 53 ). As abbot , he was a liberal patron of the bards , and both Gutun Owain and Guto'r Glyn (qq.v.) bear eloquent testimony to his hospitality. On the death of Michael Diacon he was promoted to the see and consecrated by archbishop Morton on 26 April 1500 . He d. three years later.


  • Registrum Sacrum Anglicanum (1897) , ii, 95;
  • Gwaith Guto'r Glyn (1939) (Cardiff, 1939 );
  • J. Y. W. Lloyd , History of the Princes, the Lords Marcher, and the Ancient Nobility of Powys Fadog , iii, 385.


Sir John Edward Lloyd, D.Litt., F.B.A., F.S.A. (1861-1947), Bangor

Published date: 1959