The breviary says about him:
Born in Florence in the year 1515. He came to Rome and began to devote himself to work among the young men, while at the same time he led a Christian life and formed a brotherhood to look after the sick poor. In 1551 he became a priest and formed the Oratory in which he held services consisting of spiritual readings and hymns, as well as performing charitable works. He was outstanding for love of his neighbour, and evangelical simplicity and joyfulness in the service of God. He died in the year 1595.More at his Catholic Encyclopedia entry here and his Wiki here.