De Quinzanis had a particularly intense devotion to Saint Thomas Aquinas. In fact, to overcome the temptation of thoughts against purity, she once threw herself upon a cartload of thorns in imitation of the Doctor Angelicus. Exhausted from this penance, she prayed to Saint Thomas, and, according to legend, was girded by angels with a cord, which they tied so tightly around her waist that she cried out in pain.
