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Male Seigneur William de St. Omer IV of Fauquemberghe Click to view Seigneur William de St. Omer IV of Fauquemberghe in the family tree

William was born about 1150 in St. Omer, France.  William's father was Chatelain William de St. Omer III and his mother was Mathilde.  His paternal grandfather was William de St. Omer II and his paternal grandmother is Melisinde de Picquigny.  He was an only child.  He died in Holy Land.


William's family with Ida d'Avesnes

They had a son named Nicholas.

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