- Born: 523
- Height: 1.88 m/6'2"
- Weight: 91 kg/200 lbs.
- Eyes: Gray
- Hair: Black/White
- Facial Hair: Full beard and mustache
- Tattoos: None
- Scars: All over his legs from wounds in battles
- Died: 580
Son of King Gwynlliw and grandson of King Brychan through his daughter Gwladus, Cadoc was given his ecclesiastical education because of his family's position of influence. He chose to live the life of a scholar and teacher after an unusual incident with a boar in his youth. Instead of goring him it disappeared. Llancarfan is built on the site.
Finishing his education under Bachan, Cadoc immediately established a monastery at Llancarfan. As the abbot there, Cadoc was at the center of ecclesiastical life among the Britons. He acted as teacher for entire classes of students and an occasional mentor for Gildas.
In 551, Cadoc was forced to take on the kingship in 551, but only so that he could fend off an invasion by Ceredig of Ceredigion. Realizing he could not be a good king and a religious man he forsook politics after about a year.
Though born into a royal family, Cadoc did not have the arrogance of his bloodline. He happily took to religion, turning down the kingship in favor of a life spent learning and teaching. He enjoyed and took pride in his position as a teacher and, after the death of Illtud, was considered the finest in Britain.
- The Age of Saints