the pope's resolution, he was obliged to dismiss him, not daring to detain him by force and expose himself to immediate conflict with the Franks. The pope left Pavia on 5 November. The new Frankish king Pepin was clearly resolved upon interfering in Italy, and Aistulf saw himself face to face with a new situation immediately before reaching the aim he had longed for so fervently.
But all links had not yet been broken off. Pepin sent embassies over the Alps three times in order to induce Aistulf to yield, but in vain. The public feeling among the Frankish nobles was by no means favourable to war, and Aistulf, wishing to profit thereby, sent to Gaul Pepin's brother and former co-regent Carloman, who was now monk in Monte Cassino. While the Frankish army was already advancing, the pope once more sent a letter full of entreaties to Aistulf, and Pepin offered 12,000 solidi as recompense for the disputed territories; Aistulf refused with threats and brought the whole of his forces, and the military material he had stored up for his enterprise against Rome, to Susa at the foot of Mont Cenis, awaiting the Franks' attack. He was too impatient however to hold out behind the fortified clusae, and attacked the Frankish vanguard by surprise; but not being able to deploy his superior forces in the narrow vale, he was thrown back and was himself very nearly killed; then he concentrated the rest of his army in the fortified city of Pavia, where the main army of the Franks appeared after a few days. But as the Franks shrank from a long siege and the Frankish nobles, who had kept up friendly relations with the Lombards dating perhaps from the time of Charles Martel, tried to mediate, peace was made, Aistulf confirmed the treaty by oath, promising to surrender those territories of Italy he had occupied illegally and to acknowledge formally the Frankish king's sovereignty. He sent forty hostages and made lavish presents to the king and the nobles as recompense for the expenses of war (autumn 754). The pope returned to Rome, accompanied by the Frankish ambassador Fulrad, and Pepin retired over the Alps. But Aistulf did not think of keeping his oath. Of all the towns he only surrendered Narni, and seeing that Pepin did not interfere again, he resolved to put an end to the quarrel by a master stroke. On 1 Jan. 756 a Lombard army again encamped before Rome on the right bank of the Tiber, Aistulf rapidly approached from Spoleto, and the Beneventans from the south. With terrible threats, he required the pope's surrender while his bands plundered the Campagna. Pepin's envoy, the abbot Warnehar, fought against the Lombards in full harness and then informed his prince of what he had seen. But Rome's strong walls saved her again; Aistulf gave up the siege after five months and returned to Pavia (5 April) to await a new attack from Pepin when winter was over and the melting snow rendered the passage possible.
The Lombards were once more dispersed by the Franks near the
