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Male William De Cornwall Click to view William De Cornwall in the family tree

William De was born about 1286 in , Burford, Shropshire, England.  William De's father was Plantagenet Earl of Cornwall Richard and his mother is Joan FitzAlan countess st owen.  His paternal grandparents were Prince Richard of England -Earl of Cornwall and Sanchia Berenger , of Provence; his maternal grandparents were John FitzAlan and Isabella Mortimer. He had three brothers and two sisters, named Edmund (Bryan) De, Richard De John, Geoffrey De, of Cornwall and Lamellen.  He is the second youngest of the six children.

Sources/Citations
Ancestral File (TM), Ancestral File (TM)

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