Born a Prince, the eldest son of Saint Brychan of Brecknock, and Benedulved. Martyr. Defynnog, Ystradgynlais, Penderyn, Battle, Llangynog, and Merthyr Cynog and several churches in Wales are named for or dedicated to him.
- c.492 in Merthy-Cynog, Wales
- relics enshrined at Merthyr Cynog; legend says that no man is able to tell a lie when in the presence of the relics
- “Saint Canog ap Brychan“. CatholicSaints.Info. 6 October 2016. Web. 24 February 2017. <>