Geraint son of Erbin

The figure of Geraint is attested in early Middle Welsh englynion preserved in manuscripts such as the Black Book of Carmarthen (completed c. 1250), though the poem itself may have origins in the 10th or 11th century. Narrative genealogies situate him in the late 6th century within the post-Roman historic imagination of southwestern Britain and South Wales. In later prose, his tale was shaped by continental romance influence and appears in the Welsh prose romance "Geraint and Enid," itself derived from Chrétien de Troyes' Erec and Enide.

Surviving summaries and manuscript listings do not provide a consistent, sustained physical description of Geraint. In the sources he is represented as a celebrated warrior in encomiastic englyn stanzas and later as a chivalric knight in prose romance; thus the corpus portrays him by role (heroic/knightly) and deed rather than by specific bodily features in the provided materials.

The provided sources attest to Geraint's renown as a martial hero, especially for his exploits at the Battle of Llongborth as celebrated in the Middle Welsh poem. The prose romance tradition presents him in the register of a chivalric knight influenced by continental romance. The supplied material does not attribute supernatural powers or extraordinary magical abilities to him; his prominence is literary and martial rather than occult.