Most likely named after her paternal grandmother, Aénor was the first-born daughter of the couple but the third-born child.

She had two older brothers, Hugh and Raoul, and two younger sisters, Amable and Aois.

Her mother was willingly abducted by her future father-in-law, William IX of Aquitaine and became his mistress until his death in 1127.

Aénor is also attested to have prompted her husband to give out donations and grants to religious institutions.

[3] They had three children: Aénor died suddenly in 1130[4] while hunting with her husband in the marshes of Lower Poitiou,[2] possibly of a fever.