His maternal grandparents were Aimery IV, Viscount of Thouars and Aremgarde de Mauléon.

[citation needed] The Duke of Aquitaine, the earliest known troubadour whose work survives, was quite popular with the women of his time and was known to have had many affairs.

William used his wealth and power to eventually reconcile with the Pope and was accepted back into the Church.

In support of this argument for a domestic rather than a political motive, Aenor was the daughter of the woman the future duke hated for her role in the treatment of his mother.

Regardless of the cause, the marriage led to the birth of Eleanor of Aquitaine and made Aimery an ancestor of some of Europe's most famous nobles and rulers.