メルセン条約
On 8 August 869, Lothair II died. Lotharingia was claimed by his uncles, Louis the German and Charles the Bald. In 870, the two came to an agreement with the Treaty of Meerssen which divided Lotharingia among them. The Annales Bertiniani report that Charles the Bald "went to the palace of Nijmegen to hold discussions with the Norseman Hrørek, whom he bound to himself by a treaty." Coupland considers the talks were between a ruler and a "leading local figure" of a newly annexed area. Charles secured his loyalty and recognition of his sovereignty, Rorik kept control of his region. The same type of agreement Lothair I and Lothair II had with him.