Trierer Dom
On 9 August 1540 the cathedral chapter of the Cathedral of Trier elected Johann Ludwig von Hagen as the new Archbishop of Trier. Pope Paul III confirmed the appointment on 10 December 1540. During his time as archbishop, he attended regularly to his ecclesiastical duties and opposed the Protestant Reformation. During the Schmalkaldic War, large areas of the Archbishopric of Trier were devastated by armies, especially Koblenz and the surrounding area.