‘Mère Angélique’. A sister of Antoine Arnauld, she became Abbess of Port-Royal in 1602. She shared without protest in the relaxed discipline of the house until she was converted by a sermon in 1608. She promptly introduced drastic reforms. The community increased and in 1625 she moved it to a larger house in Paris. Differences with Sébastien Zamet, Bp. of Langres, led her to resign as Abbess in 1630 but after the election of her sister Agnes as Abbess in 1636, she again exercised (indirect) power. She came under the influence of Saint-Cyran, under whom the community became an enthusiastic upholder of Jansenist principles and practice. From 1642 to 1654 she was again Abbess.