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Male William IV of Hainault Click to view William IV of Hainault in the family tree

William IV of was born after 1311.  William IV of's father was William III the Good of Hainault and Holland and his mother was Jeanne de Valois.  His paternal grandparents were Jan II de Hainault and Philippa de Luxemburg; his maternal grandparents were Charles III Capet de Valois and Marguerite of Sicily & Naples. He had three sisters named Margaretha de Hainault &, Joan of and Philippa of.  He was the second oldest of the four children.  He died in 1345.

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