Family: Owain ap Gruffydd / Gwladys verch Llywarch (F2011)
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Father | Male
Owain ap Gruffydd
Born Abt 1100 Caernarvonshire, Wales 
Died Dec 1169 Caernarvonshire, Wales Buried Married Father Gruffydd ap Cynan | F1057 Group Sheet Mother Angharad verch Owain | F1057 Group Sheet
Mother | Female
Gwladys verch Llywarch
Born Abt 1098 Arwystli, Montgomeryshire, Wales Died UNKNOWN Buried Father Llywarch ap Trahearn | F4997 Group Sheet Mother Dyddgu verch Iorwerth | F4997 Group Sheet
Child 1 | Male
Iorwerth Drwyndwn ap Owain
Born Between 1144 and 1145 Castle Aberffraw, Anglesey, Wales Died Abt 1174 Wales Buried Spouse Marared Verch Madog | F3282 Married