Cum ex apostolatus officio

Cum ex officio Apostolatus is the name of a papal bull of Pope Paul IV wrote on 15 February 1559.

It contains, among other things, the basic premise that a cardinal who is obviously apostatized, his active and passive suffrage loses at a papal election. If a bishop, archbishop, cardinal or pope differ from the Catholic faith before his election, his collection, even if it was made ​​with the unanimous agreement of all cardinals, is null and void and must be regarded as worthless. Among other things, it is assumed that Paul IV wrote the bull to prevent a possible choice of the popular Cardinal Morone.