Pope Sixtus V
He participated in the papal conclave of 1585 that elected Pope Sixtus V. On December 18, 1585, he opted for the order of cardinal priests and his deaconry was raised "pro illa vice" to the status of a titular church. He opted for the titular church of Santi Bonifacio e Alessio on April 20, 1587. Pope Sixtus V named him auditor of causes for citizens of the Papal States.