Llawgad Trwm Bargod Eidyn

'Heavy Battled-Hand of the Border of Eidyn'
Llongad Grwyrm Fargod Eidyn

The warrior who killed Afaon (Adaon ab Taliesin), son of Taliessin, according to a Welsh Triad entitled Three Unfortunate Assassinations of the Island of Britain.

Another Triad notes that Afaon avenged his death from the grave, so Llawgad may have been killed.