In 1080 Beatrice became Countess, a successor of her brother, Count Raymond of Bigorre. As was the custom when a woman inherited a domain at that period, her spouse became her co-ruler.
Beatrice, with the help of Centule V, donated to some monasteries.
^Raymond Jodar-Galindo. Les Ducs d'Aquitaine, les Ducs de Gascogne: (les Comtes de Bigorre), (les Vicomtes de Béarn), (les Comtes d'Alava), (les Comtes de Biscaye), (les Comtes d'Aragon). 1990.