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
Porius: A Romance of the Dark Ages Powys describes "Porius" as a romance, because it draws heavily on Arthurian romance as well as the Welsh classic the Mabinogion, parts of which contain Arthurian stories; furthermore it includes both giants and magic. However, Myrddin Wyllt (Merlin), and Nineue, the Lady of the Lake are the major Arthurian characters and King Arthur only has a minor role. There are other Arthurian figures, including Medrawd (Mordred or Modred), Galahaut, and Powys also makes use of the Arthurian name Creiddylad. Creiddylad in the novel is Porius's giantess great-grandmother and as well it is the name Porius gives to the young giantess