IV William
IV was born about 0937 in Aquitaine, France.  He died in France.

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

 V William
V was born about 0969 in Poitiers, Aquitaine, France.  He died on January 31st, 1030 in France.