Argentina is the country whose citizenship you cannot legally lose (though dual citizenship is permitted), and they have mandatory* voting. So the Pope is still a citizen of Argentina and did vote or faced charges. I don’t think they allow exceptions.

* Edit: Not quite true. See replies.

Pope is technically head of state or another country so it is probably bad to vote in any election just from the perspective of looks. The pope should be above politics.

Doesn’t even matter. It he didn’t there is a 50 peso fine that you can pay in 24 month installments.

Literally paying 0.5 cents in 2 years for missing a mandatory voting law lmao