Geraint be identified as the real warrior eulogized in connection with the Battle of Llongborth in the poem, despite its title. Bryce identifies Llongborth with the 710 battle between that Geraint and Saxon leader Ine of Wessex. Strathclyde had rulers named Geraint and Erbin/Elfin in the same era, and was also known as Damnonia, after the Dumnonii tribe of the area in Romano-British times, and thus easily confused with Dumnonia/Devon. He is possibly most famous as the protagonist in the Welsh tale "Geraint and Enid", where he becomes the lover of Enid. "Geraint and Enid" is one of the three Welsh
Geraint of Dumnonia the Easter Problem and the shape of the tonsure. It is clear from this letter that in the later 7th century the Britons in Cornwall and Devon still observed Easter on the dates that the British church had calculated, at variance with Roman Catholic practice. Geraint ultimately agreed with Aldhelm to comply with Roman practice on these points. According to John of Worcester, Geraint was killed after a series of battles that culminated in a victory of the West Saxons under Ine of Wessex in 710. It was probably around this time that Devon was conquered by the West Saxons.