Canon law and Unam Sanctam

Canon law systematised and binding across kingdoms. Unam Sanctam declares submission to the Roman pontiff necessary for salvation for every human creature.

In plain words

Church law is organised and made binding across kingdoms, and Unam Sanctam declares that submitting to the pope is necessary for the salvation of every human creature. The title Vicar of Christ is standing in God's place, not speaking for him.

The mechanism

ONE LAW ABOVE LOCAL SOVEREIGNTY, and A MAN IN GOD'S SEAT — Vicarius Christi is not speaking for; it is standing in

How it was checked

• EvidenceT7 PRIMARY DOCUMENT / MEASUREMENT; Status: COMMITTED; a capture
• Letter eraTHE CAPTURE 313 to 1302
• Plate — Leaf from Gratian's Decretum, Naples, c. 1270–1300 · Cleveland Museum of Art · CC0 · source: https://commons.wikimedia.org/wiki/File:Italy,_probably_Naples,_13th_century_-_Leaf_from_Gratian's_Decretum-_Table_of_Consanguinity_-_1929.435.2_-_Cleveland_Museum_of_Art.tif
• SourcesPRIMARY DOCUMENT — the Decretum; the bull