The Frankish Kingdoms, 817–911: the East and Middle Kingdoms
Johannes Fried
Louis the Pious, however, after death of Pippin in 838, tried to confine German once again Bavaria (839) order promote interests Charles. It was from that East Frankish kingdom created. The Carolingian brothers' mutual hostility encouraged Vikings redouble their attacks on kingdoms, which affected especially Lothar's territory. Even 843, still remained Louis' most important power base. When Lothar I died 856 his Middle Kingdom divided among sons. II 869, Charles immediately invaded while brother detained at Regensburg. inheritance Lotharingia altered demands king, for now he had beat back Vikings. For first time western frontier appeared as kingdom; Treaty Ribemont (880) sealed agreement.
Cambridge University Press eBooks