sure the pope recalled this letter by means of the very messenger who brought it, but still Desiderius succeeded in averting a new Frankish intervention, greatly desired by the pope, by making certain concessions, especially in relation to the patrimonies. At his next visit to Rome, Desiderius framed a compact on the Frankish embassies' advice about 763 on the basis of mutual acknowledgment of the status quo; and Desiderius promised to come to the pope's aid with all his forces in case of an attack from the Emperor. It was only after Pope Paul's death (767) that new difficulties with Rome arose when a party, hostile to the late government, had raised Constantine to the papal throne, and the defeated party's leader, the primicerius Christophorus, claimed the Lombards' help. The defeated party entered Rome by force, led by Lombard troops and the Lombard priest Waldipert, but the Lombard candidate Philip was not able to maintain himself on the papal throne in place of Constantine; Stephen III was elected and Waldipert himself slain by his former adherents (768). Shortly after this failure Desiderius tried to procure the archbishopric of Ravenna for Michael, one of his confidants (769); but Frankish commissioners dismissed him at the pope's wish.
A new combination in foreign politics seemed to change the present situation to the disadvantage of the pope and in favour of Desiderius. Desiderius and Tassilo of Bavaria, both menaced by the Frankish preponderance, had entered into friendly relations, and Tassilo had married Liutperga, daughter of Desiderius. Pepin's widow Bertrada conceived the plan of securing peace by bringing one of her sons into relationship with the Lombard royal family. Notwithstanding the pope's amazement, she crossed the Alps and asked one of Desiderius' daughters in marriage for her son Charles. The betrothal took place under the guarantee of the Frankish nobles and the marriage was accomplished. Meanwhile Bertrada had endeavoured to reassure the pope about her transactions with Desiderius. The latter had evidently renewed his promise to respect the territorial status quo and restore the patrimonies which were the private property of the Roman Church. Of course the next consequence was the fall of the anti-Lombard party prevailing in Rome. This was approved of by the pope, who wanted to escape his minister's predominant influence. Desiderius appeared before Rome with military forces, but under pretence of praying at the Apostle's grave and arranging disputed questions. The pope came out to him and received his promise by oath. But a papal chamberlain named Paulus Afiarta, the leader of the Lombard party, raised up within the town a revolt against Christophorus, whereupon the pope maintained that Christophorus and his party conspired against his life. The accused offered resistance within the town, but were betrayed by the Romans, abandoned by the pope, and cruelly killed by Paulus Afiarta and his accomplices. Desiderius did not now want to hear anything more
