This was not likely to be effective, and the Signoria made a more promising effort at self-protection by passing various laws imitated from those adopted not long before at Perugia. To limit the abuse of selling licenses to bear arms, the inquisitor, as we have seen, was restricted to employing six armed familiars. Moreover, it was decreed that no citizen could be arrested without the participation of the podestà, who was required to seize all persons designated to him by the bishop--the inquisitor not being alluded to--which would seem to leave small opportunity for independent action by the latter, especially as he was deprived of his private jail and was ordered to send all prisoners to the public prison. He was further prohibited from inflicting pecuniary punishments, and all whom he condemned as heretics were to be burned. This was revolutionary in a high degree, and did not tend to harmonize the relations between the republic and the papacy. The desperate quarrel between them which arose in 1375 was caused by political questions, but it was embittered by troubles arising from the Inquisition, especially as a demand made by Innocent VI., in 1355, for a revision of their statutes remained unheeded. In 1372 efforts were made to obtain the removal of Frà Tolomeo da Siena, the Inquisitor of Tuscany, who was exceedingly unpopular, but Gregory XI. expressed the fullest confidence in him and ordered him to be protected by the Vicar-general, Filippo, Bishop of Sabina. Yet the pope probably yielded, for I find in 1373 that Frà Piero di Ser Lippo, who had already served as Tuscan inquisitor in 1371, was again appointed to replace a certain Frà Andrea di Ricco. With some intervals Frà Piero served until at least 1384, and he proved no more disposed than his predecessors to yield to the resistance which the methods of the Inquisition inevitably provoked in the free Italian cities. Pistoia had followed the example of Florence in endeavoring to protect its citizens by municipal statutes, and in 1375 it was duly placed under interdict and its citizens were excommunicated. At the same time Frà Piero complained of Florence as impeding the free action of the Inquisition, and Gregory at once ordered the Signoria to abrogate the obnoxious statutes. No attention was paid to these commands by Florence, and when the rupture came the Florentine mob expressed its feelings by destroying the inquisitorial prison and driving the inquisitor from the city. It was also alleged that in the disturbances a monk named Niccolò was tortured and buried alive. These misdeeds, although denied by the Signoria, were alleged as a justification of the terrible bull of March 31, 1376, fulminated against Florence by Gregory. In this he not only excommunicated and interdicted the city, but specially outlawed the citizens, exposing their property wherever found to seizure, and their persons to slavery. This shocking