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Male Guillaume de Dampierre Click to view Guillaume de Dampierre in the family tree

Guillaume de was born about 1224 in <, Dampierre, Jura, France>.1   Guillaume de's father was Guillaume II de Dampierre and his mother was Marguerite De Flandres.  His maternal grandparents were Baudouin XI (VI) Hainaut and Marie de Navarre. He had two brothers and three sisters, named Jean de, Guy de, Jeanne de, Gertrude de and Marie de. He had three half-brothers named Baudouin d', Jean I and Baudouin.  He died on June 6th, 1251.1 

1 Isabella D'AVESNES.FTW

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