The repeated reverses sustained by the Greeks had impaired confidence in their leaders, whose incompetency was more responsible for the defeats of the imperial army than the want of discipline which was so conspicuous among the rank and file. Although the progress of the Moslems was slow, it was certain. Their losses were easily repaired, their impetuosity was rather stimulated than checked by misfortune, and in every respect their recuperative power proved itself superior to that of their enemies. The territory of Sicily, although far from subdued, seemed too limited for their daring ambition. Passing the Strait of Messina they swept the ancient province of Magna-Græcia with destruction. They conquered Apulia and Calabria. They ravaged the duchy of Spoleto. They surprised Ancona. They seized Beneventum, Brindisi, Tarentum, Bari. They occupied the promontory of Misenum, under the very walls of Naples. They established themselves on the coast of Dalmatia. They sacked and burned the ancient city of Capua. They founded the colony of Garigliano, a constant menace to the Papal States, and long the scourge of the Christian principalities of Italy. Independent settlements, composed of soldiers of fortune who had become familiarized with their pitiless calling in the civil wars of Spain and Africa, were founded throughout the south of the Italian Peninsula. The captains of these outlaws assumed the titles of sovereignty, robbed and massacred the Christian peasants, and acquired for the name of Moslem a terror and an execration not inferior to that which distinguished the powers of darkness. Neapolitan pilots guided their corsairs along the shores of the Adriatic. The squadrons of the Sultan of Africa routed the Venetians in several naval encounters, landed forces at the mouth of the Po, drove the commerce of the Italian republics from the sea, and pushed their incursions as far as the confines of Istria. They penetrated to the gates of Rome, destroyed the churches of St. Peter and St. Paul, which were situated outside the walls, and insulted the dignity of the Holy See by horrible acts of sacrilege. The relics of the Saints were subjected to unspeakable insult. Monks were slaughtered without mercy or driven away in crowds to toil in the Sicilian marshes. Nuns were seized to be exposed for sale in the slave-markets of Palermo and Kairoan. Had it not been that the Eternal City was too well fortified for an army unprovided with the military engines necessary for a siege to attack it with any prospect of success, the Mohammedan worship might have been introduced into the stronghold of Christianity. With the exception of the sack of Rome by the Constable of Bourbon in a subsequent age, the throne of the Papacy was never subjected to a more humiliating indignity. The constant dissensions of the semi-independent principalities of Italy aided in maintaining the foothold of the Saracens far more than their own valor or resources.