[Sidenote Roger of Sicily.]
Roger of Sicily alone had not accepted Innocent; but a foolish attempt to coerce him ended in the defeat and capture of the Pope. In return for the acknowledgment of papal suzerainty, which involved oblivion of the imperial claims, Innocent not only confirmed to Roger and his successors both his conquests in Southern Italy and the royal title, but even, by the grant of the legatine power to the King himself, exempted his kingdom from the visits of papal legates. Roger was supreme in Church and State. A cruel yet vigorous and able ruler, he built up a centralised administrative system from which Henry II of England did not disdain to take lessons. His possession of Sicily carried him to Malta and thence to the north coast of Africa; and before his death in 1154 Tunis was added to his dominions. He was thus one of the greatest among the early Crusaders, and perhaps the most notable ruler of his time.
[Sidenote: Conrad III.]
Lothair hoped to leave in his son-in-law a successor with irresistible claims. But the very influence to which Lothair owed his own election was now to be cast into the scale against the representative of his family; while the grounds of objection to the succession of Frederick of Hohenstaufen to Henry V now held good against Henry of Bavaria, Saxony, and Tuscany. The Pope and the German nobles were equally afraid of a ruler whose insolent demeanour had already won him the title of "the Proud." They took as their candidate the lately rejected Hohenstaufen Conrad, whose behaviour since his submission had gained him favour in proportion as the conduct of Henry of Bavaria had alienated the other nobles. Conrad was crowned at Aachen by the papal legate, and Henry made his submission. But Conrad, like Lothair, felt himself insecure with so powerful a subject. Accordingly he took away from him the duchy of Saxony, and gave it to the heir of the old dukes in the female line. When Henry refused to accept the decision Conrad put him to the ban of the Empire and deprived him of Bavaria also, which he proceeded to confer upon a relative of his own. But Conrad's obvious attempt to advance his own family offended the nobles, and the death of Henry the Proud in 1139 opened the way for a compromise. Saxony was made over to Henry's youthful son, known in history as Henry the Lion, while Bavaria was to be the wedding portion of Henry the Proud's widow if she married Conrad's relative, who was already Margrave of Austria.
[Sidenote: Arnold of Brescia.]
But despite this elimination of all rivals Conrad was so much occupied elsewhere that he never managed to reach Italy. And yet his presence there was eagerly desired. It was under the guidance of their bishops that the cities of Lombardy had freed themselves from subjection to the feudal nobles. But with the growth of wealth they resented the patronage of the bishops and were inclined to listen to those who denounced the temporal possessions of the Church. The movement spread to Rome. Here the municipality still existed in name, but it was quite overlaid by the papal prefect and the feudal nobles of the Campagna; and the Roman people had no means of increasing their wealth by the agriculture or the commerce which was open to the cities of Tuscany or Lombardy. A leader was found in Arnold of Brescia (1138). He seems to have been a pupil of Abailard, who devoted himself to practical reforms. He began in his native Lombardy to advocate apostolic poverty as a remedy for the acknowledged evils of the Church. Condemned by the second Lateran Council (1139), he retired to France, and in 1140 stood by the side of Abailard at the Council of Sens. After Abailard's condemnation Arnold took refuge at Zurich, where, despite the denunciations of Bernard, he found protection from the papal legate, who had been a fellow-pupil of Abailard. Arnold returned to Italy in 1145, and was absolved by the Pope.
[Sidenote: The Roman Republic.]
The course of affairs in Rome brought him once more to the front. In 1143 Innocent II had offended the Romans, who in revenge proclaimed a republic with a popularly elected senate and a patrician in place of the papal prefect. Innocent died (September, 1143); his successor survived him by less than six months, and the next Pope, Lucius II, was killed in attempting to get possession of the Capitol, which was the seat of the new government. The choice of the Cardinals now fell upon the abbot of a small monastery in the neighbourhood of Rome, who took the title of Eugenius III (1145-53). He was a pupil of Bernard, who feared for the appointment of a man of such simplicity and inexperience. But Eugenius developed an unexpected capacity, and forced the Romans to recognise for a time his prefect and his suzerainty. But Arnold's presence in Rome was an obstacle to permanent peace. Both Arnold and Bernard eagerly sought the same end—the purification of the Church. But in Bernard's eyes Arnold's connection with Abailard convicted him of heresy, and his doctrine of apostolic poverty was construed by the ascetic abbot of the strict Cistercian Order as an attack upon the influence under cover of the wealth of the Church. Nor was Arnold a republican in the ordinary sense. He expelled the Pope and organised, under the name of the Equestrian order, a militia of the lesser nobles and the more substantial burgesses, such as existed in the cities of Lombardy. But he did not desire to repudiate the Emperor; and at his instigation the Romans summoned Conrad to their aid and to accept the imperial crown at their hands. Eugenius spent almost his whole pontificate in exile; his successor, Anastasius IV, during a short reign, accepted the republic, but Hadrian IV (1154-9) took the first excuse for boldly placing the city for the first time under an interdict. The consequent cessation of pilgrims during Holy Week and the loss of their offerings caused the fickle Romans to expel their champion, and Arnold wandered about until a few months later Frederick Barbarossa sacrificed him to the renewed alliance of Empire and Papacy (1154).
[Sidenote: The second Crusade.]
Conrad III, then, never was crowned Emperor. It was no fault of his that he never visited Rome. Bernard's influence caused him to postpone his immediate duties for a work which every Christian of the time regarded as of paramount importance. The first Crusade had met with a measure of success only because the Mohammedan powers were divided. The Crusaders were organised into the kingdom of Jerusalem and the principalities of Tripoli, Antioch, and Edessa. But they quarrelled incessantly. Meanwhile Imad-ed-din Zangi, the Atabek or Sultan of Mosul on the Tigris, extended his arms over all Mesopotamia and Northern Syria, and in 1144 he conquered the Latin principality of Edessa. The whole of Europe was shocked at the disaster. Pope Eugenius delegated to Bernard the task of preaching a new crusade. The young King, Louis VII of France, had already taken the Crusader's vow, but so far the earnest entreaty of his minister, Suger, Abbot of St. Denys, had kept him from his purpose. But at the Council of Vezelai in 1146 the eloquence of Bernard bore down all considerations of prudence. Conrad III was much harder to persuade, for he felt the need of his presence at home. But Bernard was not to be denied, and by working upon Conrad's feelings at the moment of the celebration of the Mass he entirely overcame the better judgment of the German King.