 Complete the following phrase:  Bretislaus had to secure his duchy by force of arms. By Christmas 1193, he was keeping court at Prague. In 1195, he drove Vladislaus out of Moravia and installed one of his supporters in the march. Bretislaus also took part in an Imperial campaign in Meissen, where his army plundered the churches. To make amends, he planned to take part in the German 