Priests appointed by the bishop to say Mass and preach in convent chapels. According to Canon Law, such chapels are under the spiritual care of the pastor in whose parish they are situated. For a grave reason, however, the bishop may appoint chaplains to convents which are independent of the pastor. Their powers will be defined in the letters of appointment. Usually they say Mass, give religious conferences, and perform other sacred ceremonies. They are not the confessors of the religious unless especially appointed to this office. They may not perform any reserved parochial functions such as Baptism or marriage, in the convent chapel, without special permission of the bishop. They are usually appointed from the ranks of the secular clergy. In case of need, however, the bishop may appoint priests who are members of a religious order or congregation.