The Duke of Aquitaine refuses to submit to his king, "condemning the crime of the Franks [the capture of Charles]" and the Bishop of Laon is compared to Judas the "traitor". Finally, they make peace on the banks of the Loire. This remark is even more explicit in the city of Limoges. Acts say that until 988, Hugh and his son Robert were recognized by the date of their reign "regnante Ugo rege anno II et Rotberto filio suo anno primo" ("signed the second year of the reign of King Hugh and the first of his son Robert"). But a few months later, the charters are not dated by their reigns: it seems that the change is due to the knowledge of the capture of Charles of Lorraine and the betrayal of Adalberon, bishop of Laon. Once made aware, the southern cities would have rejected the legitimacy of Hugh and Robert. Dispute with the papacy After the loss of Reims by the betrayal of Arnulf, Hugh demanded his deposition by Pope John XV. But the pope was then embroiled in a conflict with the Roman aristocracy. After the capture of Charles and Arnulf, Hugh resorted to a domestic tribunal, and convoked a synod at Reims in June 991. There, Gerbert testified against Arnulf, which led to the archbishop's deposition and Gerbert being chosen as replacement. Pope John XV rejected this procedure and wished to convene a new council in Aachen, but the French bishops refused and confirmed their decision in Chelles (winter 993–994). The pope then called them to Rome, but they protested that the unsettled conditions en route and in Rome made that impossible. The Pope then sent a legate with instructions to call a council of French and German bishops at Mousson, where only the German bishops appeared, the French being stopped on the way by Hugh and Robert. Gerbert, supported by other bishops, advocates for the independence of the churches vis-à-vis Rome (which is controlled by the German emperors). Through the exertions of the legate, the deposition of Arnulf was finally pronounced illegal. To avoid excommunication of the bishops who sat in the council of St. Basle, and thus a schism, Gerbert decided to let go. He abandoned the archdiocese and went to Italy. After Hugh's death, Arnulf was released from his imprisonment and soon restored to all his dignities. Under the auspices of the emperor, Gerbert