Aulic exclusiva
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Jus Exclusivæ[[1]], or papal veto was the right, claimed by three Catholic powers, France, Spain, and Austria, to veto a candidate for the Papacy.
A veto was last employed in the Papal conclave of 1903, on behalf of the Austrian Emperor Francis Joseph I, against Mariano Rampolla. The eventual successor to the papacy, Pope Pius X, abolished the aulic exclusiva.