Imperium - Divine and Earthly Imperium

Divine and Earthly Imperium

In some monotheistic religions such as Christianity (the Catholic Church where the official language, Latin, used terms as Imperium Dei/Domini) the Divine is held to have a superior imperium, as ultimate King of Kings, above all earthly powers. Whenever a society accepts this Divine will to be expressed on earth, as by a religious authority, that opens the way for a theocratic legitimation. If however a secular ruler controls the religious hierarchy, he can use it to legitimate his own authority.

Thus absolute, universal power was vested under early Islam in the original Caliphate (before it became the political toy of worldly powers 'behind the throne' and was even politically discarded by essentially secular princes), and later again claimed by Mahdis.

While the Byzantine Eastern Roman Emperors retained full Roman imperium and made the episcopate subservient, in the feudal West a long rivalry would oppose the claims to supremacy within post-Roman Christianity between sacerdotium (the 'priesthood', i.e. the clergy ministering the word and will of God) in the person of the Pope and the secular imperium of the revived Western Roman Emperor since Charlemagne. Both would refer to the heritage of Roman law by their titular link with the very city Rome: the Pope, Bishop of Rome, versus the Holy Roman Emperor (even though his seat of power was north of the Alps).

The Donatio Constantini, by which the Papacy had allegedly been granted the territorial Patrimonium Petri in Central Italy, became a weapon against the Emperor. The first pope who used it in an official act and relied upon it, Leo IX, cites the "Donatio" in a letter of 1054 to Michael Cærularius, Patriarch of Constantinople, to show that the Holy See possessed both an earthly and a heavenly imperium, the royal priesthood. Thenceforth the "Donatio" acquires more importance and is more frequently used as evidence in the ecclesiastical and political conflicts between the papacy and the secular power: Anselm of Lucca and Cardinal Deusdedit inserted it in their collections of canons; Gratian excluded it from his Decretum, but it was soon added to it as Palea; the ecclesiastical writers in defence of the papacy during the conflicts of the early part of the 12th century quoted it as authoritative.

In one bitter episode, pope Gregory IX who had several times mediated between the Lombards and the Holy Roman Emperor Frederick II reasserted his right to arbitrate between the contending parties. In the numerous manifestos of the pope and the emperor the antagonism of Church and State becomes daily more evident: the pope claimed for himself the imperium animarum 'command of the souls' (i.e. voicing Gods will to the faithful) and the principatus rerum et corporum in universo mundo 'princedom over all things and bodies in the whole world', while the emperor wished to restore the imperium mundi, imperium (as under Roman Law) over the (now Christian) world — Rome was again to be the capital of the world and Frederick was to become the real emperor of the Romans, so he energetically protested against the world-empire of the pope. The emperor's successes, especially his victory over the Lombards at the battle of Cortenuova (1237), only embittered the opposition between Church and State. The pope again excommunicated the "self-confessed heretic", the "blasphemous beast of the Apocalypse" (20 March 1239) who now attempted to conquer the rest of Italy, i.e. the papal states, et cetera.

The chief minister of Henry VIII, the Archbishop of Canterbury Thomas Cranmer suggested removal of the Roman Catholic papacy's imperium in imperio (Latin equivalent of state in the state) by requesting that Parliament pass the Act in Restraint of Appeals (1533) specifying that England was an empire and that The Crown was imperial, and a year later the Act of Supremacy proclaiming the Imperial Crown Protector and Supreme Head of the Church of England.

In Orthodox Russia too, when Peter I the Great assumed the Byzantine imperial titles Imperator and Autokrator, instead of the 'merely' royal Tsar, the idea in founding the Russian Holy Synod was to put an end to the old Imperium in imperio of the free Church, by substituting the synod for the all too independent Patriarch of Moscow, who had become almost a rival of the Tsars — Peter meant to unite all authority in himself, over Church as well as State: through his Ober-Procurator and synod, the Emperor ruled his Church as absolutely as his army and navy through their respective ministries; he appointed its members (mostly bishops) just as his generals; and the Russian Government continued his policy until the end of the empire in 1917.

Even in 19th century North America, when by the decree of the President of the United States, Brigham Young, the Mormon hierarch and head of The Church of Jesus Christ of Latter-day Saints, was appointed first Governor of the Utah Territory on 28 September 1851, this was called (politically, not in law) establishing a semi-theocratic (theodemocratic) form of government there (until the Utah War) as an imperium in imperio, within the limits of the republic.