Math Son of Mathonwy Summary

Math, king of Gwynedd, must sleep with his feet in the lap of a virgin except during war. Math's brother Gilfaethwy lusts after Goewin, Math's foot holder. Gwydion promises to arrange a war so Gilfaethwy can have her.

Gwydion travels to Pryderi's court in disguise and asks for some of his magical pigs. Gwydion conjures up horses and hounds and offers these in exchange. Pryderi agrees but the horses and hounds vanish. War breaks out. While Math is absent, Gilfaethwy and Gwydion rape Goewin. Gwydion and Pryderi meet in single combat. Gwydion uses magic and kills Pryderi.

As punishment for the rape, Math turns Gilfaethwy into first deer, then pigs, then wolves, changing their genders and making them bear offspring to each other He also makes Goewin his queen.

Gwydion suggests Aranrhod as Math's next footholder. As...