(15 February 1534 – 11 October 1592) was an Italian priest who is called the "Apostle of Corsica".
He is a saint of the Roman Catholic Church.
In 1571, he was appointed by Pius V to the ancient see of Aleria, Corsica, where he rebuilt churches, founded colleges and seminaries, and, despite the depredations of corsairs, placed the Church in a flourishing condition.
In 1591, he was made Bishop of Pavia, and died at Calozza the following year.
He left a number of works, chiefly catechetical.
He was beatified by Benedict XIV, 23 April 1742, and canonized by Pope Pius X, 11 December 1904.