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Male William III Chatelain De St Omer Click to view William III Chatelain De St Omer in the family tree

William III Chatelain De was born about 1120 in St Omer, France.  William III Chatelain De's father was William II Chatelain De St Omer and his mother was Melisende De Picquigny.  His paternal grandparents were William I Chatelain De St Omer and Aganitrude Von Brugge; his maternal grandparents were Arnoul Comte De Picquigny and Mrs Arnoul De Picquigny. He had a sister named Mahaut De.  He was the younger of the two children.  He died in 1170.


William III Chatelain De's family with Matilda Nmn William III 1090 St Omer

They had a son named William IV De.

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