For the relations of Russia with the papacy, see T.
Its bishop Cadalus (1046-1071) was elected to the papacy by the Lombard and German bishops in 1061, and marched on Rome, but was driven back by the partisans of Alexander III.
During his short reign Calixtus strengthened the authority of the papacy in southern Italy by military expeditions, and restored several buildings within the city of Rome.
That of the prince as representing within the limits of his dominions the monarchy of God over all things, culminated in the 17th century in the doctrine of the divine right of kings, and was defined in the famous dictum of Louis XIV.: L'etat c'est moil The conception of monarchy was derived through Christianity from the theocracies of the East; it was the underlying principle of the medieval empire and also of the medieval papacy, the rule of the popes during the period of its greatest development being sometimes called "the papal.
The struggle between them has been represented as one of a patriotic archbishop resisting the encroachments of the papacy on the Church of England.