“ Angélique's reforming energy soon brought her into contact with Jean Duvergier (q.v.) abbot of Saint Cyran, and chief apostle in France of the Jansenist revival, and the later history of her convent is indissolubly connected with this movement.
In 1626 constant visitations of ague drove the nuns to Paris; they settled at Port Royal de Paris, at the end of the Faubourg Saint Jacques. The deserted buildings of Port Royal des Champs were presently occupied by “hermits,” laymen, mostly relatives of the abbess, who wished for a semi-monastic existence, though without taking formal vows. ”

“ In 1669, however, came the so-called “Peace of Clement IX.,” when the Jansenists generally were admitted to grace, and the interdict was removed from Port Royal, though the authorities broke up the convent into two distinct communities. The conformist nuns were gathered together at Port Royal de Paris, under an independent abbess; their Jansenist sisters were united at the original building in the country. hereupon followed ten years of peace, for the nuns had a powerful protector in the king's cousin, Mme de Longueville. ”

“ Port Royal de Paris was secularized at the French Revolution, and is now a maternity hospital.
For a classified list of the chief books, ancient and modern, dealing with Port Royal, see the Abrégé de l'histoire de Port Royal, by Jean Racine, ed. E. Gazier (Paris, 1908) . See also C. A. Sainte-Beuve, Port Royal (6 vols. and index, Paris, 1882) ”