A Machiavellian tract on the fundamental maxims of Venetian policy ("Opinione come debba governarsi la repubblica di Venezia"), used by his adversaries to blacken his memory, dates from 1681. He did not complete a reply which he had been ordered to prepare to the "Squitinio delia libertà veneta", which he perhaps found unanswerable. In folio appeared his "History of Ecclesiastical Benefices", in which, says Matteo Ricci, "he purged the church of the defilement introduced by spurious decretals." It appeared in English translation in 1736 with a biography by John Lockman. In 1611, he attacked misuse of the right of asylum claimed for churches, in a work that was immediately placed on the Index.