844. Louis crushed the Abodrites in battle, who had been preparing to defect from his allegiance; as their king Goztomuizli had been killed, he had the land and people which God had brought under his yoke ruled by duces.1
851. The Sorbs violated the Frankish border with frequent attacks and incendiary raids. The king, angry at this, proceeded through Thuringia with an army, invaded their territory and oppressed them severely.2
858. Louis... returned to Frankfurt, and, after he had discussed and dealt with many things of importance for the kingdom with his men, decided that three armies should be sent to different frontiers of his kingdom. The first, under Carloman his eldest son, he sent against the Moravian Slavs and Rastiz; a second under Louis, his younger son, against the Abodrites and Linones; the third was sent under Thaculf against the Sorbs who refused to obey his commands.3
862. In the same year the king led an army against the Abodrites and compelled their dux Tabomuizli, who had rebelled, to be obedient and to give his son and others as hostages.4
869. The Sorbs and Siusli joined with the Bohemians and the other peoples of the region and crossed the old Thuringian border.5
874. The Sorbs and the Siusli and their neighbors rebelled on the death of Thaculf. Archbishop Liutbert [of Mainz] and Ratolf, Thaculf’s successor, crossed the River Saale in January and by pillaging and burning crushed their insolence without battle and reduced them to their further servility.6
877. The Slavs called Linones and the Siusli their neighbors planned to rebel and refused to pay the usual tribute. King Louis sent certain of his faithful men there around mid-Lent, and they suppressed the rebellion without fighting; they took some hostages and not a few gifts and reduced these peoples to their former state of servility.7
880. The Slavs called Daleminzi, the Bohemians, and the Sorbs and the other tribes in the neighbourhood, when they heard of the slaughter of the Saxons by the Northmen, came together and threatened to invade the lands of the Thuringians, and attacked the Slavs around the Saale faithful to the Thuringians with plunder and burning. Count Poppo, dux of the Sorbian march, came against them with the Thuringians, and with God's help so defeated them that not one out of a great multitude remained.8
889. [King Arnulf] went against the Abodrites with a great army, but little was accomplished there, however, and the king gave the army leave to depart and returned to Frankfurt in great haste.9