In the beginning of the tenth century we find Germany divided into five great duchies, Lotharingia, Franconia, Saxony, Bavaria, and Suabia. The boundaries of the last four corresponded pretty closely to the boundaries of old German tribes: Franks, Saxons, Bavarians, and Alamanni. The attempt of Karl to weld the various German tribes into one state was successful during his reign, but that period was too brief to extinguish the tribal feeling, and his weak successors, occupied with schemes of selfish aggrandizement, abandoned his larger policy. During the later Carolingian period the impotence of the central government put the burden of ruling upon the local officials, who under the weak rule of Ludwig the Child usurped the title of duke in each of the large divisions. This usurpation was successful largely because the people in each duchy regarded their new duke as the representative of tribal unity. In Saxony and Bavaria the counts of the marks took the position of leaders of the nobles and people of the whole provinces against the invasions of Slavs and Hungarians, and were rewarded by the fidelity and allegiance of the duchy. In Franconia and Suabia the same position was won by local officials, but in these cases it was as the result of struggles between rival families for supreme position in the duchy. The references in documents to these events are very meager, but it will be observed that dukes of Saxony, Bavaria, Franconia, Suabia are mentioned in these passages. The last of the Carolingian emperors of the East Franks was Ludwig [the Child], son of Arnulf.... This Ludwig married Liudgard, sister of Bruno and the great duke Otto, and soon after died. These men, Bruno and Otto, were the sons of Liudolf.... Bruno ruled the duchy of all Saxony, but perished with his army in resisting an incursion of the Danes, thus leaving the duchy to his younger and far abler brother Otto. Ludwig the Child left no son, and all the people of Franconia and Saxony tried to give Otto the crown. But he refused to undertake the burden of ruling, on the ground that he was too old, and by his advice Conrad, duke of Franconia, was anointed king. 25. Suabia. Annales Alamannici, M. G. SS. folio, I, pp. 55 f. Anno 911. Burchart, count and prince of the Alamanni, was unjustly slain by the judgment of Anselm, and his sons Burchart and Udalrich were driven out and his possessions and fiefs divided among his enemies.... Anno 913. In this year Conrad the king attacked the king of Lotharingia. A conflict arose between Conrad and Erchanger [a count palatine in Suabia]. The Hungarians break into Alamannia; on their return Arnulf [duke of Bavaria] and Erchanger, with Berthold and Udalrich, attack and defeat the Hungarians. In this year peace is made between the king and Erchanger, and the king marries the sister of Erchanger.