A beautiful lady, who held the post of foot-holder at Math fab Mathonwy’s court – only virgins could hold this post.
Gilfaethwy, brother of Gwydion fab Don, fell in love with Goewin. Gwydion used his magic arts to distract the others while Pryderi, Gilfaethwy and Gwydion abducted Goewin, whom they raped.
When Math fab Mathonwy discovered what had happened, he punished the brothers by condemning them to spend three years in animal forms.