Cum ex apostolatus officio Latin for 'By virtue of the Apostolic office' Papal bull of Pope Paul IV | |
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Signature date | 1559 |
Subject | Measures against heretics |
Cum ex apostolatus officio is the name of a papal bull issued by Pope Paul IV in 1559; it states that only Catholics can be elected Popes, to the exclusion of non-Catholics, including former Catholics who have become public and manifest heretics.[1]