 On 14 September 1655, he was consecrated bishop by Giulio Cesare Sacchetti, Cardinal-Bishop of Frascati, with Giovanni Alfonso Puccinelli, Archbishop of Manfredonia, and Francesco Gheri, Bishop of Cervia, serving as co-consecrators.It is uncertain how long he served as Auxiliary Bishop of Frascati.While bishop, he was the principal co-consecrator of