Iwerydd verch Lewys 
Iwerydd verch was born about 1234 in Merthyr, Tudful, Glamorganshire, Wales. Iwerydd verch is no longer alive.
They had two sons named Madog "Fychan" ap and Gwilym "Sais" ap.
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Children
Madog "Fychan" ap Madog
Madog "Fychan" ap was born about 1255 in Merthyr, Tudful, Glamorganshire, Wales.
Gwilym "Sais" ap Madog
Gwilym "Sais" ap was born about 1280 in Merthyr Tudful, Uwch Caeach, Glamorganshire, Wales.
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