In Milan, we are told, there were many heretics, not only among the laity but among the clergy, both regular and secular, some of whom seem to have been publicly known and to have enjoyed the protection of the authorities. In 1554 Archbishop Arcimboldo and Inquisitor Castiglione united in issuing an Edict of Faith, comprehensive in its character, promising for spontaneous confession and denunciation of accomplices the reward of a fourth part of the fines and confiscations that might ensue. Denunciation of heretics was also commanded, with assurance of secrecy for the informer. This Edict is moreover of especial interest as comprehending what is perhaps the earliest organization of censorship, for it required the denunciation of all prohibited books and the presentation by booksellers of inventories of their stocks, with heavy penalties for omissions or for dealing in the prohibited wares.[229] This zeal seems not to have aroused the secular authorities to a fitting sense of their duties, for a brief of Paul IV, May 20, 1556, to Cardinal Mandrusio, lieutenant of Philip II, recites how that son of iniquity, the apostate Augustinian Claudio de Pralboino, had been condemned by the inquisitor and handed over to the secular arm; how, while awaiting his fate in the public prison, a forged order, purporting to be signed by the inquisitor, had been fabricated by some lawyers, on the strength of which he escaped and, in view of all this, the cardinal is urged to see to the punishment of those concerned in the fraud, to lend all aid and assistance to the inquisitor and to be watchful against the heresies creeping in from the Grisons. It was doubtless with the hope of securing greater efficiency that, in 1558, the Inquisition was taken from the friars of San Eustorgio and confided to those of Santa Maria delle Grazie and the Dominican Gianbattista da Cremona was appointed inquisitor-general.[230]