obtain his liberty, he was compelled to release the young duke, whose right to the fief he also recognised. This was a proud day for Harald, who returned to Denmark with a reputation unrivalled in the north. His next exploit was similar—to place on the throne of Norway (now a monarchy) the sons of Eric, whom Hako, the reigning king, had driven into exile. His arms were successful; and he restored to Harald Grafeld the sceptre of the father. Twelve years afterwards, this prince being assassinated (an event of very usual occurrence in the history of the north), the Danish king went a second time into Norway, subdued the country, and divided it into three kingdoms. One portion he confided, under the ordinary feudal obligations, to Harald Grenshi, a prince of the family; a second, subject to the same homage and service, was bestowed on jarl Hako; the third, which was the lion’s share, was reserved to the Danish crown; and from all a large annual tribute was exacted. This policy was injurious enough to Norway, however useful it might be to Denmark. And it was scarcely less hurtful to England, since it augmented the power of the Danish kings, so as to render them formidable enemies to this island. In his next expedition, which was against no less a personage than the emperor Otho I., he was less happy. Embracing the cause of a rebel whom Otho had placed under the ban of the empire, and learning that the monarch was absent in Italy, he made a fierce irruption into Saxony, and, we are told, put to death the ambassadors of Otho. He had little difficulty in driving the imperial garrison from Sleswic, and in destroying that important fortress. On the return of Otho, however, who lost no time in avenging the indignity offered to the empire, Holstein was speedily overrun, and he driven into the north of Jutland. He was compelled to treat with the victor; and his states were left him on the condition of his baptism, and that of his son Sweyn, and of helping, instead of impeding, the progress of Christianity in his dominions. That on this occasion he did homage for them to the emperor, is asserted by the German, and denied by most native, historians. The subject may occupy our attention for a few moments.[96] [Sidenote: 964.]