 The daughter of Aymeric I, Ænor of Châtellerault ("ca" 1103 - "ca" 1130), whose mother had been the "mistress" in the new courtly love poetry of the troubadour lord William, sixth Count of Poitiers and ninth Duke of Aquitaine, who lodged in his tower the "Dangereuse de Châtellerault", married his son, William X of Aquitaine, and was mother of Eleanor of Aquitaine.The title, "Vicomte de Châtellerault," passed in turn to each of three great French noble families