Lywelyn ap SEISYLL & Angharad verch MAREDYDD 
They had a son named Gurffydd ap.
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Personal Details
Lywelyn ap SEISYLL
Lywelyn ap was born in 0980 in Rhuddian, Flintshire, England. He died at the age of 41 in 1021.
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Children
Gurffydd ap LLEWELLYN
Gurffydd ap was born about 1000 in Rhuddian, Flintshire, Wales. He died on August 5th, 1063 in Snowdonia, Wales.