St. Peter Damian
Reformer and Doctor of the Church
Saint Peter Damian, O.S.B. (Petrus Damiani, also Pietro Damiani or Pier Damiani; c. 1007 – February 21/22, 1072) was a reforming monk in the circle of Pope Gregory VII and a cardinal. In 1823, he was declared a Doctor of the Church. Dante placed him in one of the highest circles of Paradiso as a great predecessor of Saint Francis of Assisi.