Cynog

Cognacio Brychan

Thirteenth-century Latin genealogical text.

St Tyrnog of Llandyrnog

Itinerarium Kambriae

An account of Gerald's journey through Wales as he accompanied accompanying Baldwin, archbishop of Canterbury, in 1188.

The Mothers of Irish Saints

Genealogical tract found in the twelfth-century Book of Leinster.

Oral Tale of St Cynog

Oral tale recorded in about 1702 in a manuscript of Hugh Thomas from Breconshire.

Plant Brychan

A Welsh-language genealogical text that circulated from the fifteenth century onwards.

St Cynog of Merthyr Cynog

Later fifteenth-century poem to Cynog, surviving in a number of manuscripts.

St Cynog of Merthyr Cynog

Poem to Cynog from the second half of the fifteenth century by Dafydd Epynt, who was probably from Merthyr Cynog.

S. Baring-Gould and John Fisher The Lives of the British Saints (London: Honourable Society of Cymmrodorion, 1908), 264⁠–71    Darllen ar-lein

Elissa Henken Traditions of the Welsh Saints (Cambridge: D.S. Brewer, 1987), 178⁠–84, 336⁠–7

J.D. Evans and M.J. Francis 'Cynog: spiritual father of Brycheiniog' yn Brycheiniog (1994⁠–5)

Gwenno Angharad Elias 'Llyfr Cynog of Cyfraith Hywel and St Cynog of Brycheiniog' yn Welsh History Review (2006)