 On March 24, 1734, he was named cardinal deacon in the consistory of March 24, 1734 and installed on April 12, 1734 in the deaconry of Santo Maria in Portico Campitelli.On September 15, 1734, he was named Bishop of Osimo e Cingoli.On April 4, 1734, he was consecrated bishop by Giovanni Antonio Guadagni, Cardinal-Priest of Santi Silvestro e Martino ai Monti and vicar general of Rome, assisted by Tommaso Cervini, Titular Latin Patriarch of Jerusalem, and Giuseppe Maria Feroni, Titular Archbishop of Damascus.