Margred was the daughter of Ieuaf ap Llewellyn and Efa verch Iorwerth. The date and place of her birth have not been found.
Her husband was Hywel ap Ieuan. They were married, but the date and place have not been found. Their two known children were Ieuan ap Hywel (c1317-?) and Adda ap Hwyel (?-?).
Ieuaf ap Llewellyn |
Llewellyn ap Cynwrig |
Cynwrig Efell ap Madog |
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Iorwerth ap Gruffydd |
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Angharad verch Dafydd |