Cadell Ddyrnllwg
Cadell Ddyrnllwg was a mid-5th century King of Powys. Much of what is known of him involves a heavily-mythologized account of his rise to power thanks to divine intervention.
Biography
According to Chapters 32-35 of the Historia Brittonum attributed to Nennius, Cadell came to power in Powys as a result of clergyman Saint Germanus of Auxerre's second visit to Britannia in the 440s. Then Bishop of Auxerre in Gaul, Germanus had been sent by his superiors to preach against Pelagian views popular among the Britons but considered heresy by the Church.At the time the King of Powys was Benlli Gawr, possibly an Irish chieftain. The "iniquitous and tyrannical" Benlli refused Germanus entry, leaving the clergyman and his party without shelter as night approached. Cadell was one of Benlli's servants and offered Germanus lodging for the night in his home outside Benlli's residence. The next morning Germanus witnessed Benlli execute another servant for arriving late, and having determined Cadell's piety, counseled him to quit Benlli's castle and advise his friends likewise. That night "fire fell from heaven, and burned the city, together with all those who were with the tyrant, so that not one escaped; and that citadel has never been rebuilt even to this day." After the cataclysm Germanus blessed Cadell and proclaimed he and his descendants would rule in Powys from then on.
It is unclear where the Powysian capital was at the time; tradition suggests the Clwydian hillfort Foel Fenlli, the 'Hill of Benlli', while archaeological evidence points to Caer Guricon. The latter was occupied well into the sixth century, and an ancient memorial stone bearing the Celtic name Cunorix, known as the Wroxeter Stone, has been discovered here. However Wroxeter shows no signs of a violent end, instead being abandoned or perhaps evacuated by its occupants towards the end of the seventh century. Lewis Morris referred to Cadell as "a poor man of Iâl".