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Male Yarthyr ap Mervyn Click to view Yarthyr ap Mervyn in the family tree

Yarthyr ap was born before 0900.  Yarthyr ap's father was Merfyn ap Rhodri Mawr.  His paternal grandparents were Rhodri the Great Mawr ap Merfyn of Wales and Angharad verch Meurig. He had two brothers and a sister, named Llewelyn ap, Triffyn ap and Avandreg verch.  He is the youngest of the four children.

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