with the Agilolfing weakened. Until distracted by Byzantine politics in 726, Liutprand's chief warmaking energies were concentrated on taking Bavarian castles on the River Adige. Byzantine wars In his early reign, Liutprand did not attack the Exarchate of Ravenna or the Papacy. But in 726, the Emperor Leo III made his first of many edicts outlawing images or icons (see the iconoclastic controversy). The pope, Gregory II, ordered the people to resist and the Byzantine duke of Naples, Exhiliratus, was killed by a mob while trying to carry out the imperial command to destroy all the icons. Liutprand chose this time of division to strike the Byzantine possessions in Emilia. In 727, he crossed the Po and took Bologna, Osimo, Rimini and Ancona, along with the other cities of Emilia and the Pentapolis. He took Classis, the seaport of Ravenna, but could not take Ravenna itself from the exarch Paul. Paul was soon killed in a riot, however. Eventually, Ravenna would capitulate to Liutprand with barely a fight (737). The first Umayyad raids on Corsica began around 713–719 from the Balearic Islands to the west. Acting as the protector of the Church and its faithful, Liutprand subjected the island to Lombard government (c. 725), though it was nominally under Byzantine authority. Corsica remained with the Lombard kingdom even after the Frankish conquest, by which time Lombard landholders and churches had established a significant presence on the island. When the Saracens invaded Sardinia, Liutprand redeemed the body of Augustine about the year 720. He brought it with great ceremony to Pavia, and enshrined it in the Church of Saint Peter, which was then the cathedral of Pavia. He rescued the relics stationed on the island with great haste as well as with great expense, according to Paul the Deacon. Donation of Sutri Having just overwhelmed the Byzantine forces, though it was left to his heirs to make the final vestige of the Exarchate of Ravenna Lombard at last, Liutprand advanced towards Rome along the Via Cassia; he was met at the ancient city of Sutri by Pope Gregory II (728). There the two reached an agreement, by which Sutri and some hill towns in Latium (see Vetralla) were given to the Papacy, "as a gift to the blessed Apostles Peter and Paul" according to the Liber Pontificalis. They were the first extension of Papal territory beyond the confines of the Duchy