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Matthew_Holford
Guest
There is due to practice a de facto rule that the cardinals elect one of their number; they have been doing so for centuries. The de iure rule is that they can elect any Catholic male. As far as I’m aware there’s no current regulations written down about this. The Apostolic Constitution Universi dominici gregis, setting out the election rules, doesn’t say whom the cardinals may elect.This would assume that relevant Church regulations were suspended, such as the requirement that a candidate has to be a cardinal (if there actually is such a regulation).