The divine scholar
Prudentia is the Virtue of Wisdom, and one of the four virtues of The Celestial Order along with Temperantia, Fortitudo, and Iustitia. She is incredibly reclusive, and spends most of her time in her quarters. She has incredibly powerful divination magic, and is a very skilled spellcrafter. Her duties, which are not very well known publically, include scrying for important information, developing new spells, and providing the Archangel with guidance and wisdom.