“Did not Pope Leo XIII declare, in an Encyclical to French Catholics, that a new authority might, for the sake of the Common Good, receive the right to rule, when the rightful authorities have been removed and are no longer available, and a chaos has arisen so that the maintenance of order requires that new powers be established?
This is to be answered, new legitimacy comes from such emergency power only when the old Authorities and their rightfully appointed successors are not only removed from power, but no longer actually exist. In that case the path lies open, indeed it creates a new necessity, for the establishment of a new legitimate authority. So long as the rightful Authorities are merely hindered and incapacitated, the emergency order is only permitted as an emergency order, that is to say as a curator or guardian, for so long as the rightful Authority is repressed and its Restoration hindered. However it must not set itself in opposition to this. It is therefore merely legal.”
-Dr. Hans Karl von Zeßner-Spitzenberg, Legitimität und Legalität
(The full text of Dr. H.K. von Zeßner-Spitzenberg’s Legitimität und Legalität is in the process of being translated and will be published in full on The War for Christendom)