Madog ab Iestyn ap Gwrgan ab Ithel of Rhuthion Parents Iestyn ap Gwrgant Children Hywel ap Madog ab Iestyn ap Gwrgan of Meisgyn Siblings Gwenllian ferch Iestyn ap Gwrgan ab Ithel Nest ferch Iestyn ap Gwrgan ab Ithel Catrin ferch Iestyn ap Gwrgan Rhys ab Iestyn ap Gwrgan ab Ithel of Resolfen Caradog ab Iestyn Gruffudd ab Iestyn ap Gwrgan ab Ithel Rhydderch ab Iestyn