<P> When Math hears of the assault on Goewin , he turns his nephews into a series of mated pairs of animals : Gwydion becomes a stag for a year , then a sow and finally a wolf . Gilfaethwy becomes a hind deer , a boar and a she - wolf . Each year they produce an offspring which is sent to Math : Hyddwn , Hychddwn and Bleiddwn . After three years , Math releases his nephews from their punishment and begins the search for a new foot - holder . Gwydion suggests his sister Arianrhod , who is magically tested for virginity by Math . During the test , she gives birth to a `` sturdy boy with thick yellow hair '' whom Math names Dylan and who takes on the nature of the seas until his death at his uncle Gofannon 's hands . </P>
<P> When Math hears of the assault on Goewin , he turns his nephews into a series of mated pairs of animals : Gwydion becomes a stag for a year , then a sow and finally a wolf . Gilfaethwy becomes a hind deer , a boar and a she - wolf . Each year they produce an offspring which is sent to Math : Hyddwn , Hychddwn and Bleiddwn . After three years , Math releases his nephews from their punishment and begins the search for a new foot - holder . Gwydion suggests his sister Arianrhod , who is magically tested for virginity by Math . During the test , she gives birth to a `` sturdy boy with thick yellow hair '' whom Math names Dylan and who takes on the nature of the seas until his death at his uncle Gofannon 's hands . </P>
how did math discover aranrhod had lost her virginity
how did math discover aranrhod had lost her virginity
magically tested
magically tested