plenitudo potestatis

papal history

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In Roman Catholicism: Ancient and medieval views of papal authority
…that fullness of power (plenitudo potestatis) over the church to which, according to some scholars, Leo I himself had laid claim. In this they were aided not only by the efforts of publicists such as the 13th-century Italian theologian and philosopher Giles of Rome, also known as Aegidius Romanus,…
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