Owain ap Gruffydd Of+ Gwynedd & Gwladys Verch Llywarch+ X 
They had a son named Iowerth Drwyndwn Ap Owain of+.
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Personal Details
Owain ap Gruffydd Of+ Gwynedd
Owain ap Gruffydd Of+ was born about 1087. He died on November 28th, 1170. He was buried in Bangor Cathedral, Caernarvonshire, Wales.
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Children
Iowerth Drwyndwn Ap Owain of+ Gwynedd
Iowerth Drwyndwn Ap Owain of+ was born about 1130 in Aberffraw Castle, Aberffraw, Anglesey, Wales. He died about 1174 in Pennant Mehangell.