Gronw Pebr

Gronw Pebr (Welsh pronunciation: [ˈɡrɔnu ˈpɛbr̩]) "Gronw the Radiant" is a warrior, hunter and antagonist in Welsh tradition, appearing primarily in the fourth branch of the Mabinogi as the lord of Penllyn, the lover of Blodeuwedd and the murderer of Lleu Llaw Gyffes.

Lleu Llaw Gyffes has been placed under a tynged that he would never gain a wife of human birth.

His uncle, the trickster and magician Gwydion joins forces with the Venedotian king Math fab Mathonwy to create a woman for Lleu, out of the flowers of oak, broom and meadowsweet, naming her Blodeuwedd.

Blodeuwedd coaxes the secret from Lleu and a year later, Gronw ambushes the prince.

Gronw and Blodeuwedd now assume power, but on hearing the news of his nephew Gwydion sets out to find and cure him.