William IV D'Aquitaine
William IV was born about 0942 in Aquitaine, France.

 Emma De Blois
Emma was born about 0950 in Blois, France.  She died after December 27th, 1003.

 William V D'Aquitaine
William V was born about 0995 in Poitou, France.  He died on January 31st, 1030 in Abbey of St Cyprian.

 Agnes D'Aquitaine
Agnes was born about 0996.  She died in 1097.