 Complete the following phrase:  Otto found himself in constant conflict with Duke Vladislav. Nevertheless, in 1123 he was able to succeed Vladislavs younger brother Soběslav as Prince of Brno. When Duke Vladislav died in 1125, Otto again claimed the Bohemian throne according to the principle of agnatic seniority. When Vladislavs brother Soběslav succeeded, Otto turned to King Lothair II who marched against Bohemia with a German army. Both sides met in the 