[1] She was born in Lede, in the county of Flanders, the daughter of Adrian Bette, knight, and Agnes de Merode de Rummen.
Her cousin, Guillaume de Bette, 1st Marquess of Lede, was a knight of the Order of Santiago with links to the Habsburg court.
As abbess she faced financial strains, which she attempted to meet by selling off part of the abbey's land.
She also attempted to reform the monastery, which had acquired a reputation for loose discipline.
In 1644 she commissioned a precious reliquary in Baroque style to house the relics of Saint Alena.