John Gruffith was Dean of St Asaph from 1556 until his death in 1557.Fasti ecclesiae Anglicanae Vol.1 p82 He was also Treasurer of Llandaff and a Canon of Salisbury."Willis' Survey of St. Asaph, considerably enlarged and brought down to the present time" Edwards, E. p170: Wrexham, John Painter, 1801

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