A Dominican nun, Agnes (1268 – 1317) was renowned for her diligence in prayer and her extraordinary charity. Although born of a wealthy family in Gracchiano, Italy, she believed that charity is the only way to acquire the virtue of humility: there is no humility without charity; the one nourishes the other. She first joined the Sisters of the Sack (so called because of their rough clothes) in Montepulciano. But when a new foundation was established in Proceno, Agnes was sent there as housekeeper; later she served as bursar and superior. Meanwhile her austerities and her visions of Christ, Mary, and the angels had become so well known that the citizens of Montepulciano invited her to return. She did so and founded a convent in premises formerly used as brothels. Because she sought perfection according to the way of St. Dominic, she placed the convent under the direction of the Dominicans, and it grew and prospered.
The above excerpt is from Reflections of Dominican Spirituality: The Windows of St. Dominic Church, Washington, D.C. by Dr. Mary Moran.