A Legal Fiction That Let Women Nurse Outside the Cloister

Vincent de Paul and Louise de Marillac faced a specific canonical obstacle in 1633 when they wanted to send women out into the streets and hospitals of Paris to nurse the sick poor and care for foundlings: church law of the period generally required women's religious communities to be enclosed, which would have made exactly the active, mobile work they intended impossible. Their solution was a deliberate legal device rather than a doctrinal argument: the Daughters of Charity were organised as a society of apostolic life whose members took only annual, renewable vows rather than the solemn, permanent vows that triggered enclosure requirements, and were described as living in the world, using ordinary houses rather than convents, precisely so that canon law's claustration rules would not apply to them. That structural workaround let the community do the active nursing and social work its founders wanted from the very beginning, and the model proved durable and exportable: the congregation grew over the following centuries into one of the largest women's religious communities in the world, closely associated with the spread of Catholic hospitals, orphanages and charitable institutions internationally, all built on a founding decision to define membership in a way the church's own enclosure rules could not reach.