Nest ferch Gwrgan ab Ithel ab Idwallon Parents NN ferch Cynfyn ap Gwerystan ap Gwaithfoed Gwrgant ab Ithel Children Siblings Efa ferch Gwrgant Iestyn ap Gwrgant Myfanwy ferch Gwrgan ab Ithel Ddû ab Owain Efa ab Gwrgant