The Northmen repeated their incursion no later than the following year. They respected the dominions of Ludwig the German, but ravaged the whole coast of western France as far as Bordeaux. The Saracens pillaged the coasts of Italy at the same time; it seemed as though the Norman pirate excursions had emboldened them to similar enterprises. From Africa their fleet sailed to Rome and took the city on the right bank of the Tiber, including the church of St. Peter. They then marched into south Italy, pillaging and slaughtering as they went. On the return voyage a storm at sea sent part of the fleet to the bottom of the Mediterranean, and the Christian world saw the avenging hand of God in their destruction. On the other hand, it was keenly alive to the shame of knowing that Rome and other famous holy places had fallen into the hands of the infidels.
WAR WITH THE SLAVONIC TRIBES
At this time King Ludwig was engaged in war with the Slavonic tribes. As early as the year 845 he had not been able to keep the Abodrites in subjection except by force. At the beginning of 846 he conquered a Slavonic tribe on the Elbe which we cannot more closely identify, and then took the field against the Moravians, whose duke, Moimir, was suspected of contemplating rebellion. Ludwig deposed the duke, and nominated his nephew Ratislaw as his successor. On his return march the king took the way through Bohemia, where, in mountainous ground and the depths of the forest, he found himself suddenly assailed by the Czechs, and the German army suffered severely before it could escape from the ambush. Immediately afterwards the Bohemians, who up to this time had been nominally subject to Frankish dominion, proceeded to open hostilities against the kingdom of the East Franks, and Ludwig consequently found himself under the necessity of undertaking a great expedition against them in the year 849. He himself was prevented by sickness from taking part in the campaign, and was obliged to send his army into the field under the leadership of several counts who were at variance among themselves. These commanders, after gaining some slight preliminary advantages, suffered heavy loss in men amongst the forests of Bohemia, and were actually compelled to give hostages to the Bohemians to insure their own return home unmolested. This occurrence aroused the profoundest indignation among the East Frank people, who had hitherto gloried in their military reputation above all things.
Since neither of the three kingdoms had any lack of enemies, the three brothers determined to maintain friendly sentiments towards each other and to make common cause for defence against their foes, adjusting their own small differences at a diet of princes (Fürstentag) to be held at short intervals. They met thus for the first time at Diedenheim in 844, then in 847 at Mersen on the Maas [Meuse], and at Mersen again in 851. With them appeared their great vassals, temporal and spiritual. The brothers swore to assist one another with counsel and deed against their enemies, and they directed that their mutual agreement should be put on record and made known among their subjects. But unhappily this act of brotherly concord was deficient in honest purpose, for each one was silently watching and suspecting the others, as though they had been his worst enemies.
LUDWIG TURNS AGAINST CHARLES THE BALD (853-860 A.D.)
[853-855 A.D.]
Up to this time Ludwig had remained the most loyal of the three to this friendly compact; but in the year 853 he allowed his greed of territory to seduce him into an act of treachery towards Charles the Bald. The Aquitanians, who had long struggled under the leadership of Pepin—son of a brother of the three kings who had died young—against union with the dominions of Charles the Bald, appealed to King Ludwig for aid after the death of their prince, proposing that he should either become their king himself or send one of his sons. The war with the Slavs was assuming ever vaster proportions, and Ludwig was unable to quit Germany. He therefore despatched his second son, Ludwig the Younger, with an army to Aquitaine. Charles the Bald was hard pressed by the Northmen at that time, and could only spare a small force to oppose the German troops. But the expedition of the German monarch’s son to Aquitaine was not the success he had anticipated. Only a fraction of the nobility took his part; another party adhered to the son of their late ruler; others, again, held with Charles the Bald. The whole attempt came to nothing. Ludwig was constrained to seek safety in a retreat which bore a strong resemblance to flight. The Aquitanians returned to their allegiance to Charles the Bald when he had set his son, who was still a minor, over them as king, and thus assured their country of a certain degree of independence.
The year 855 summoned King Ludwig to fresh martial enterprises. The Moravians had become restless and menaced the eastern regions of the kingdom with invasion. Ludwig undertook an expedition against Ratislaw, their prince, but without effect, for the enemy took refuge in secure fortified places behind lofty ramparts of earth. After the king had withdrawn the Moravians pressed forward into Germany along the right bank of the Danube, pillaging as they came. Ludwig could do little to protect this part of the country, as the Slavs were stirring again in the northeast. In the succeeding years he had to undertake various small expeditions against the Daleminzians, who dwelt between the Elbe and Mulde, and the Czechs of Bohemia. The results were in most cases inconsiderable, but even in these minor campaigns the German losses in fighting men were heavy. The greatest danger with which Ludwig was at that time menaced loomed from the east. The whole Slavonic world was in a ferment, and strove to gain breathing-space by pressing westwards.
[858-860 A.D.]
Under these circumstances we cannot but be surprised that Ludwig thought the moment propitious for extensive military operations against Charles the Bald. In the kingdom of the West Franks, a terrible state of things prevailed, for not only did the Northmen ravage the most fertile regions—especially the lowlands of the Loire—almost every year, but in the interior of the kingdom the insubordinate nobles were at war with one another and with the king. The malcontents of the western kingdom had repeatedly turned their eyes towards the German king. When, therefore, in the year 858, he received an appeal from many persons of consequence in the kingdom of Charles the Bald to deliver them from the king’s tyranny and to protect their country from the incursions of the heathen, Ludwig gave up the idea of a campaign against the Slavs, for which he had already made preparations, and marched his army to the west, veiling his dastardly breach of the peace under many fine phrases. The emperor Lothair had died a short time before, and the intervening kingdom of Lorraine had descended to his son, Lothair II, a young and incapable ruler, and Ludwig had therefore good reason to hope that he might be able to reunite the major part of the dominions of Charlemagne under his own sceptre. He advanced with his forces as far as Orleans while Charles the Bald and his nephew Lothair were engaged in a joint struggle with the Normans on the banks of the Loire. Imagining himself already in secure possession of the western kingdom, the king dismissed the greater part of his army, which according to ancient custom, could demand to return home after three months service in the field. Then the temper of the people suddenly changed. The bulk of the Austrasian clergy had remained loyal to Charles the Bald, the temporal lords were ill pleased to see that Ludwig governed the country with a strong hand, and the soldiers of his army had been guilty of the grave error of allowing themselves to perpetrate acts of violence against the country folk. Ludwig suddenly found himself deserted by the Austrasian nobles, disaffection was rife about him on every side, while troops of vassals were gathering round his brother Charles. Suspecting treachery everywhere, he took his departure with all possible speed, having reaped nothing from the whole campaign beyond a considerable loss of prestige. After protracted negotiations a peace was ultimately concluded between Charles and Ludwig at Coblenz in 860. The latter was forced to rest content with being spared a public humiliation and with the grant of a pardon to the Austrasian nobles who had done homage to him.