Family: Seissyll Ap Ednowain / Prawst verch Elise (F1509)
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Father | Male
Seissyll Ap Ednowain
Born Abt 938 Wales 
Died UNKNOWN Buried Married Father Ednowain | F5799 Group Sheet Mother
Mother | Female
Prawst verch Elise
Born Abt 940 Gwynedd, Wales Died UNKNOWN Buried Father Elise ap Anarawd | F5803 Group Sheet Mother
Child 1 | Male
Llywelyn ap Seisyll
Born Abt 980 Rhuddlan, Deheubarth, Flintshire, Wales Died Between 1021 and 1023 Buried Spouse Angharad verch Maredydd | F3810 Married