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Male William de NEWMARCH Click to view William de NEWMARCH in the family tree

William de was born about 1080 in Aberhonwy, Breconshire, Wales.  William de's father was Bernard de NEUFMARCHE.  His paternal grandparents were Geoffrey de NEUFMARCHE and Ada de HUGLEVILLE.  He was an only child.  William de is no longer alive.


William de's family with Mabilia de BALLON

They had a son named Henry de.