Anno 914. Conrad again comes into Alamannia. Erchanger attacks bishop Salomon and captures him. In the same year Erchanger is captured by the king and exiled. Immediately the young Burchart [son of Burchart] rebels against the king and devastates his own fatherland. Anno 915.... Erchanger returns from exile and attacks Burchart and Berthold and conquers them at Wallwis, and is made duke of the Alamanni [duke of Suabia]. 26. Henry I and the Saxon Cities, 919-36. Widukind, I, 35; M. G. SS. folio, III, p.432. Henry, duke of Saxony, king of the Germans, 919-936, was the first king of the Saxon house. He was also the first king of the Germans to accept the feudal state and to attempt to build up a government on that basis. He did not revive the imperial claims on Italy, but devoted himself to strengthening his own authority in Saxony, to defending the frontiers of the kingdom, and to creating a German state. This selection is from the history of the Saxons written by Widukind, a monk in the monastery of New Corvey, who wrote in the latter part of the tenth century. The passage illustrates the relations of the Germans to the Slavs on the east and the origin of the Saxon cities. The Slavs had moved as far west as the Elbe, occupying the lands left vacant by the Germans after the migrations. Much of this territory was gradually recovered by the Germans from the time of Henry. Here we see the capture of the city of Brandenburg and the reduction of Bohemia. Following the conquest came the establishment of the marks and the colonization and Germanizing of the land.