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Male Neil IV de St. Sauveur Click to view Neil IV de St. Sauveur in the family tree

Neil IV de was born about 1047.  Neil IV de's father was III Neil and his mother was Helena Le Bon.  His paternal grandparents were Neil II de St. Sauveur and Helena; his maternal grandparents were III Richard and Adela (Alix) Capet. He had a brother and a sister, named Richard Thurston de and Billeheude de.  He was the second oldest of the three children. He had three half-brothers and a half-sister, named Neil IV de, William I, William and Agnes.

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