 Complete the following phrase:  In the then following description of the 9th and 10th century, Deschner illustrates the deep entanglement of secular and church power. Clerical principalities came into existence and the military service of the high clergy prospered. Under the Ottonian dynasty, the Church in the Holy Roman Empire was completely militarised; dioceses and abbeys controlled a major military potential. Even popes entered wars: Leo IV in the naval 