Lleucu 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 Gruffudd ap Iorwerth. They were married, but the date and place have not been found. They had no known children.
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Ieuaf ap Llewellyn |
Llewellyn ap Cynwrig |
Cynwrig Efell ap Madog |
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Iorwerth ap Gruffydd |
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Angharad verch Dafydd |