on the Via Sacra. Rome was forced to submit to the Pope, and Arnold of Brescia was expelled. Although he had managed to restore Papal authority in the city, he was unable to eradicate the principle of republicanism, and the commune remained as the governing body. Neutralises Arnold Adrian angled for the support of the Emperor in capturing the heretic Arnold. Arnold was captured by Imperial troops in summer 1155. Arrested and tried in a Papal court for rebellion rather than heresy, he was hanged and his body burnt. Adrian claimed that Arnold's execution had been on the initiative of the prefect of Rome, but some contemporary observers, such as Gerhoh of Reichersberg, suspected Adrian of ordering the execution himself. The Emperor's willingness to assist the Pope in his own city, and help him crush his enemies, was an explicit recognition from Barbarossa of the Pope's possession of Rome. Papal relations with the lords of Campania were already tense, as they, in the Pope's view, were little more than robber barons, who both fought among each other and robbed pilgrims from the south on their way to Rome. Imperial trouble at Sutri, late 1155 Barbarossa had received the Iron Crown of Lombardy—as King of Italy—in Pavia, but also wished to receive his Imperial Crown from the Pope. Adrian originally saw the Emperor as protector and defender of the church. Both parties, notes Ullmann, were unpopular in Rome: To this end, Adrian and Barbarossa met at Sutri in early June 1155. This soon, says Sayers, "turned out to be a spectacular contest between the two to gain propagandist supremacy". Adrian, reports an Imperial chronicler, was there "with the entire Roman Church, met us joyfully, paternally offered us holy consecration and complained to us of the injuries he had suffered at the hands of the Roman populace". Barbarossa later recalled the ceremony in a letter to the Eastern Emperor in 1189: Adrian may have been caught off-balance by the Emperor's swift entry into Italy and the speed with which he approached Rome. The dispute was sparked by Barbarossa's unwillingness to act as the Pope's strator; lead the Pope's horse by the bridle—or to assist Adrian in dismounting—as was traditionally expected. In response, the Pope refused the Emperor the kiss of peace; the Emperor was still willing to perform the duty of kissing Adrian's feet, though. These were minor affronts at best, says