In Naples the Inquisition had been introduced by Charles of Anjou after the battle of Benevento had acquired for him the succession to the unfortunate Manfred. The house of Aragon, which followed that of Anjou, had permitted its existence, but under conditions of such subjection to the crown that it was for the most part inert. Yet Naples offered an abundant harvest for the zealous laborer. The Waldenses from Savoy, who had settled and multiplied in Calabria and Apulia, had obtained, in 1497, from King Frederic, a confirmation of their agreements with their immediate suzerains, the nobles, and felt secure from persecution. Still more inviting were the banished Jews and fugitive New Christians from Spain, who found there a tolerably safe refuge. There was also a considerable number of indigenous Jews. In the twefth century Benjamin of Tudela describes flourishing synagogues in Capua, Naples, Salerno, Amalfi, Benevento, Melfi, Ascoli-Satriano, Tarento, Bernaldo and Otranto, and these doubtless were representatives of others existing outside of the line of his wanderings. They had probably gone on increasing, although, in 1427, Joanna II called in the ruthless St. Giovanni da Capistrano to suppress their usury and, in 1447, Nicholas V appointed him conservator to enforce the disabilities and humiliations prescribed in a cruel bull which he had just issued. Possibly, under this rigorous treatment, some of them may have sought baptism for, in 1449, we find Nicholas despatching to Naples Fra Matteo da Reggio as inquisitor to exterminate the apostate Judaizers, who were said to be numerous.