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Male William IX D'Aquitaine Click to view William IX D'Aquitaine in the family tree

William IX was born on October 22nd, 1071 in Aquitaine, France.  William IX's father was William Guy Geoffrey VII D'Aquitaine and his mother was Audearde Hildegard Capet De Burgundy.  His paternal grandparents were William V D'Aquitaine and Agnes De Macon; his maternal grandparents were Robert I Capet De Burgundy and Ermengard D'Anjou. He had a sister named Agnes.  He died at the age of 54 on February 10th, 1126 in Poitiers, Vienne, Poitou, France.


William IX's first family with Philippa Mathilda of Toulouse

‌William IX and Philippa Mathilda of were married in a religious ceremony in November 1094.  They had two sons and five daughters, named William X, Raimond I, Audeare, Daughter, Agnes, Daughter and Daughter.


William IX's second family with Ermengarde D'Anjou


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