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Male Llywelyn ap Seisyllt Click to view Llywelyn ap Seisyllt in the family tree

Llywelyn was born in 0980 in Rhuddlan, Flintshire, Wales.1   Llywelyn's father was Seisyll ap Ednywain and his mother was Prawst verch Elise.  His paternal grandparents were Endowain ap Einydd and <Unknown>; his maternal grandparents were Elise ap Anarawd and <Unknown>. He had a brother named Cynan.  He was the older of the two children.  He died at the age of 43 in 1023.1 

Family Details of Llywelyn's family with Angharad verch Maredudd

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