At this time the popes were established in Avignon, in southern France, and thither she went on a visit in 1376. On her departure, the chief magistrate of Florence besought her influence with the pope, who had put him under the ban of the Church. At Avignon she was received with greatest consideration by the College of Cardinals, as well as by the pope, for all had confidence in her good sense and judgment. The story is told, however, that some of the prelates at the papal court, envious on account of her influence with the pope, and wishing to put her learning to the test, engaged her in a religious discussion, hoping to trip her in some matters of doctrine or Church history. But she reasoned with the best of them so calmly and with such evident knowledge, that they were compelled to acknowledge her great wisdom. In the fall of that same year, as the result of her arguments and representations, Pope Gregory XI. was induced to go back to Rome, the ancient seat of the Church. Catherine left Avignon before the time fixed for the pope's departure; but before returning to Siena, she went to Genoa, where several of her followers were very sick and in need of her care. There in Genoa, Gregory, on his way to Rome, stopped to visit her, being in need of further counsel. Such an act on the part of the pope is ample proof of her unusual ability and her influential position. The pope once in Rome, she entreated him to bring peace to Italy. At his request, she went to Florence to restore order there. In that city, however, she found a populace hostile to the papal party, and her protests and entreaties were of little avail. Upon one occasion, the crowd demanded her life by fire or sword, and so fierce did their opposition become that even the pope's friends were afraid to give her shelter; it was only through her great calmness and fearlessness that her life was spared. Gregory's death followed soon after, and with his demise Catherine ceased to occupy so conspicuous a place in the public affairs of her time. Gregory's successor, Urban VI., was clever enough to summon Catherine to Rome again, that she might speak in his behalf and overcome the outspoken opposition and hostility of some of the cardinals, who had declared in favor of Clement VII. in his stead, and had even gone so far as to declare him elected. Catherine was not able to effect a conciliation, however, and here began the papal schism, as the discontented cardinals continued their opposition with renewed vigor and maintained Clement VII. as anti-pope. She was more successful in another affair, as, immediately after her trip to Rome, in 1378 she induced the rebellious Florentines to come to terms of peace with Urban.