Marinus was elevated to the papacy on 30 October 942 through intervention of Alberic II of Spoleto, Prince of the Romans. He concentrated on administrative aspects of the papacy, and sought to reform both the secular and regular clergy. He extended the appointment of Frederick, Archbishop of Mainz as Papal Vicar and Missus dominicus throughout Germany and Francia.[2] Marinus later intervened when the Bishop of Capua seized without authorization a church which had been given to the local Benedictine monks.[3] In fact, throughout his pontificate, Marinus favoured various monasteries, issuing a number of Papal bulls in their favour.[4]