After the death of Bishop Michael of Regensburg (September 23, 972) Bishop Piligrim obtained from the emperor the appointment of Wolfgang as the new bishop (Christmas, 972). Wolfgang's services in this new position were of the highest importance, not only for the diocese, but also for the cause of civilization. As Bishop of Regensburg, Wolfgang became the tutor of Emperor Saint Henry II, who learned from him the principles which governed his saintly and energetic life. Poppe, son of Margrave Luitpold, Archbishop of Trier (1018), and Tagino, Archbishop of Magdeburg (1004–1012), also had him as their teacher.