Gruffudd was the son of Ieuan ap Gruffydd Voel and Ellyw Angharad verch Maredudd. The date and place of his birth have not been found.
His wife was Tangwystl verch Einion. They were married, but the date and place have not been found. They had no known children.
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Gruffudd ap Iorwerth |
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Maredudd ap Owain |
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