The Pillar of Eliseg stands near Valle Crucis Abbey, Denbighshire, Wales. It was erected by Cyngen ap Cadell (died 855), king of Powys in honour of his great-grandfather Elisedd ap Gwylog. The form Eliseg found on the pillar is thought to be a mistake by the carver of the inscription. The Pillar was thrown down by the Roundheads during the English Civil War and a grave under it opened. Edward Lhuyd examined the Pillar and copied the inscription in 1696. The lower half disappeared but the upper half was re-erected in 1779. The original inscription is now illegible.