782. In the meantime the king was informed that the Slavonic Sorbs, who inhabit the plains between the Elbe and the Saale, had entered the neighboring territories of Saxons and Thuringians to pillage, and by looting and burning had ravaged several places.1
789. From Aachen a campaign was launched with the help of God into the land of the Slavs who are called Wilzi. On the advice of Franks and Saxons [Charlemagne] crossed the Rhine at Cologne, advanced through Saxony, reached the River Elbe, and had two bridges constructed, on one of which he built fortifications of wood and earth at both ends. From there he advanced further and by the gift of God subjected the Slavs to his authority. Both Franks and Saxons were with him in this army. In addition, the Frisians joined him by ship, on the River Havel, along with some Franks. He also had with him the Slavs called Sorbs and Abodrites, whose chieftain was Witzin.2
795. [Charlemagne] entered Saxony with an army and reached the Elbe at Lüne. At that time, Witzin, the king of the Abodrites, was slain there by the Saxons.3
798. The Nordliudi were defeated in battle when they engaged Thrasco, duke of the Abodrites, and our envoy Eburis.4
806. After a few days [Charlemagne] came from Nijmegen to Aachen and sent his son Charles with an army into the country of the Slavs who are called Sorbs and live on the River Elbe. On this campaign Miliduoch, duke of the Slavs, was killed. The army constructed two castles, one on the bank of the River Saale, the other one on the Elbe. When the Slavs had been pacified, Charles returned with the army and came to the emperor at Seilles on the Meuse.5
808. But Charles, the son of the emperor, built a bridge across the Elbe, and moved the army under his command as fast as he could across the river against the Linones and Smeldingi. These tribes had also defected to Godofrid. Charles laid waste their fields far and wide and after crossing the river again returned to Saxony with his army unimpaired.6
810. …the castle of Hohbuoki on the Elbe, with Odo, the emperor’s envoy, and a garrison of East Saxons, had been captured by the Wilzi…7
812. A campaign was carried out against the Wilzi, and hostages were received from them.8
816. When the winter was over Saxons and East Franks were ordered to campaign against the Slavonic Sorbs who refused obedience. They carried out their orders energetically and without much effort suppressed the insolence of the rebels. As soon as a city had been captured, rebellious elements of the population promised submission and calmed down.9
819. [The Abodrite king Sclaomir was deposed by a Frankish army and his kingdom given to Ceadrag, son of Thrasco.]10