Īs monastics, nuns living within an enclosure historically commit to recitation of the full Liturgy of the Hours throughout the day in church, usually in a solemn manner. Traditionally, nuns are members of enclosed religious orders and take solemn religious vows, while sisters do not live in the papal enclosure and formerly took vows called 'simple vows'. In the Catholic tradition, there are many religious institutes of nuns and sisters (the female equivalent of male monks or friars), each with its own charism or special character. Vincent de Paul in the Portal of a Church, by Armand Gautier
