Giovanni_Lorenzo_Berti Giovanni Lorenzo Berti (Johannes Laurentius Berti) (1696-1766) was an Italian Augustinian theologian.The General of the Order of Hermits of St. Augustine, Schiaffinati, instructed him to write a book, to be used by all the students of the Order, expounding the whole of Augustine of Hippo's thought and particularly his doctrine of grace and free will.