The changes due to the adoption of the False Decretals by Nicholas I.
According to the medieval canon law, based on the decretals, and codified in the 13th century in the Corpus juris canonici, by which the earlier powers of metropolitans had been greatly curtailed, the powers of the archbishop consisted in the right (i) to confirm and consecrate suffragan bishops; (2) to summon and preside over provincial synods; (3) to superintend the suffragans and visit their dioceses, as well as to censure and punish bishops in the interests of discipline, the right of deprivation, however, being reserved to the pope; (4) to act as a court of appeal from the diocesan courts; (5) to exercise the jus devolutionis, i.e.
Westfrankischen Karolinger (Freiburg, 1848); but those on the pseudo-Isidorian Decretals (Untersuchung 'Ober Alter, Ursprung, u.
It was certainly known to Pope Adrian in 778, and was inserted in the false decretals towards the middle of the next century.
He permitted free study of the Aristotelian writings, and issued (1234), through his chaplain, Raymond of Pennaforte, an important new compilation of decretals which he prescribed in the bull Rex pacificus should be the standard text-book in canon law at the universities of Bologna and Paris.