Concenn, Cyngen I
Born: c. 790
Dead: 855 in Rome
A legendary King of Powys, who was said to have reigned some between the fifth and sixth centuries, although the Pillar of Eliseg puts his death in Rome, while on a pilgrimage, somewhat later in 855.
The Pillar of Eliseg is erected by Cyngen in honour of his great-grandfather Elisedd ap Gwylog.
Pillar of Eliseg | Wikipedia