Not all incumbents of the Schwerin see were imperially invested with princely temporal power as Prince-Bishops and not all were papally confirmed as bishops.
Papally confirmed bishops were then invested by the emperor with the princely regalia, thus the title prince-bishop.
A number of incumbents, elected by the chapter, neither achieved papal confirmation nor imperial investiture, but as a matter of fact nevertheless de facto held the princely power.
The respective incumbents of the see bore the following titles: Due to the Reformation, the Catholic diocese was suppressed in 1555, without formal successor.
Since 1959, the Osnabrück diocese posted an auxiliary bishop in Schwerin, responsible for Mecklenburg's Catholic parishes : On July 23, 1974, the jurisdiction was restored as pre-diocesan 'permanent' Apostolic Administration of Schwerin, its territory being formally split off from the Diocese of Osnabrück.