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Male William De St. Pierre Click to view William De St. Pierre in the family tree

William De was born about 1103 in St. Pierre & Runstone, Chepstow, Monmouthshire, Wales.  William De's father was Randolph III Le Meschines Earl of Chester and his mother was Lucy Taillebois.  His paternal grandparents were Ranulph II Of Bayeux Vicomte of Bayeux and Maud (Margaret) D' Avranches. He had a brother and two sisters, named Ranulph IV De Meschines De, Alice Of and Agnes Le.  He was the youngest of the four children.


William De's family


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