Family: Llywelyn ap Seisyll / Angharad verch Maredydd (F3810)
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Father | Male
Llywelyn ap Seisyll
Born Abt 980 Rhuddlan, Deheubarth, Flintshire, Wales 
Died Between 1021 and 1023 Buried Married Father Seissyll Ap Ednowain | F1509 Group Sheet Mother Prawst verch Elise | F1509 Group Sheet
Mother | Female
Angharad verch Maredydd
Born Abt 982 Rhuddlan, Deheubarth, Flintshire, Wales Died UNKNOWN Buried Other Spouse Cynfyn ap Gwerystan | F2007 Married Father Maredydd ap Owain | F6209 Group Sheet Mother
Child 1 | Male
Gruffydd ap Llewelyn
Born Between 1011 and 1030 Rhuddlan, Deheubarth, Flintshire, Wales Died 5 Aug 1063 Buried Spouse Ealdgyth of Mercia | F2479 Married