Llywelyn ap Madog was
Dean of St Asaph until 1357 ; and then
Bishop of St Asaph[Hardy, T. Duffus. ''Fasti Ecclesiae Anglicanae; or, a Calendar of the Principal Ecclesiastical Dignitaries in England and Wales, and of the Chief Officers in the Universities of Oxford and Cambridge from the Earliest Times to the Year MDCCXV, Corrected and Continued to the Present Time,'' Vol. I, " St. Asaph's". Oxford Univ. Press, 1854. Accessed 03 January 2018.] from then until his death in 1375.
Catholic hierarchy
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References
14th-century Welsh people
Deans of St Asaph
1375 deaths
Bishops of St Asaph
{{UK-bishop-stub