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Female Isabella D'Avesnes Click to view Isabella D'Avesnes in the family tree

Isabella was born about 1314 in Le Quesnoy, Nord, France.  Isabella's father was Wilhelm III Von Holland and her mother was Jeanne De Valois.  Her paternal grandparents were Johann I von Hennegau and Philippa of Luxembourg; her maternal grandparents were Charles I of France and Marguerite di Sicily-Naples. She had two brothers and five sisters, and also a sibling of unknown gender, named Willem IV, Louis, Sibylla, Margaretha, Agnes, Johanna, Philippa and Jan.

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