Born 7 September 1698; died 28 March 1769, after completing his studies both at college and the seminary was chosen principal of a classical school in Verona.
Some passages in this work gave serious offence to the school of absolute Probabilists, and for some years Pietro was engaged in a dispute with them, defending his principles of Probabiliorism in three volumes.
The scholarship of the two editors is best seen in the fourth volume of the works of Noris, especially in their dissertations against Garerius, and in their study of the early days of the Patriarchate of Aquileia.
The Ballerini brothers became famous throughout Italy, and in 1748 Peter was chosen by the senate of Venice to serve as its canonist in Rome in a dispute over the Patriarchate of Aquileia.
He attracted the attention of Pope Benedict XIV, who commissioned him to prepare an edition of St. Leo's works in refutation of the one published by Quesnel, who was condemned on account of his Jansenism.