Duke William Pierre ("the Great", "the Grand", "fier de bras") de Poitou III or V of Aquitaine
William Pierre, known as "the Great", "the Grand", "fier de bras", was born about 0969 in Poitiers, Poitou, Aquitaine.  He died on January 31st, 1030 in Abbey of St. Cyprian, France.

 Agnes de Macon of Burgundy
Agnes was born about 0987 in Bourgogne.  She died on November 10th, 1068.

 Beatrix de Poitou
Beatrix was born in 1018 in Poitou, Vienne, Poitou, France.

 Princess Agnes of Poitou
Agnes was born about 1020 in Aquitaine.  She died on December 14th, 1077.

 Duke William Pierre VII of Aquitaine
William Pierre was born in 1023.  He died at the age of 35 in 1058.

 Duke William VI or VIII of Aquitaine
William was born about 1026 in Aquitaine, France.  He died on September 25th, 1086 in Chãateau De Chizay, Poitou, Aquitaine.

 Count Peter of Poitou