About the middle of the eighth century, Constantine, surnamed Copronymus by the worshippers of images, had made an expedition into Armenia, and found, in the cities of Melitene and Theodosiopolis, a great number of Paulicians, his kindred heretics. As a favour or punishment, he transplanted them from the banks of the Euphrates to Constantinople and Thrace; and by this emigration their doctrine was introduced and diffused in Europe. Ref. 029 If the sectaries of the metropolis were soon mingled with the promiscuous mass, those of the country struck a deep root in a foreign soil. The Paulicians of Thrace resisted the storms of persecution, maintained a secret correspondence with their Armenian brethren, and gave aid and comfort to their preachers, who solicited, not without success, the infant faith of the Bulgarians. Ref. 030 In the tenth century, they were restored and multiplied by a more powerful colony, which John Zimisces Ref. 031 transported from the Chalybian hills to the valleys of Mount Hæmus. The Oriental clergy, who would have preferred the destruction, impatiently sighed for the absence, of the Manichæans; the warlike emperor had felt and esteemed their valour; their attachment to the Saracens was pregnant with mischief; but, on the side of the Danube, against the Barbarians of Scythia, their service might be useful and their loss would be desirable. Their exile in a distant land was softened by a free toleration; the Paulicians held the city of Philippopolis and the keys of Thrace; the Catholics were their subjects; the Jacobite emigrants their associates: they occupied a line of villages and castles in Macedonia and Epirus; and many native Bulgarians were associated to the communion of arms and heresy. As long as they were awed by power and treated with moderation, their voluntary bands were distinguished in the armies of the empire; and the courage of these dogs, ever greedy of war, ever thirsty of human blood, is noticed with astonishment, and almost with reproach, by the pusillanimous Greeks. The same spirit rendered them arrogant and contumacious: they were easily provoked by caprice or injury; and their privileges were often violated by the faithless bigotry of the government and clergy. In the midst of the Norman war, two thousand five hundred Manichæans deserted the standard of Alexius Comnenus, Ref. 032 and retired to their native homes. He dissembled till the moment of revenge; invited the chiefs to a friendly conference; and punished the innocent and guilty by imprisonment, confiscation, and baptism. In an interval of peace, the emperor undertook the pious office of reconciling them to the church and state: his winter quarters were fixed at Philippopolis; and the thirteenth apostle, as he is styled by his pious daughter, consumed whole days and nights in theological controversy. His arguments were fortified, their obstinacy was melted, by the honours and rewards which he bestowed on the most eminent proselytes; and a new city, surrounded with gardens, enriched with immunities, and dignified with his own name, was founded by Alexius, for the residence of his vulgar converts. The important station of Philippopolis was wrested from their hands; the contumacious leaders were secured in a dungeon or banished from their country; and their lives were spared by the prudence, rather than the mercy, of an emperor at whose command a poor and solitary heretic was burnt alive before the church of St. Sophia. Ref. 033 But the proud hope of eradicating the prejudices of a nation was speedily overturned by the invincible zeal of the Paulicians, who ceased to dissemble or refused to obey. After the departure and death of Alexius, they soon resumed their civil and religious laws. In the beginning of the thirteenth century, their pope or primate (a manifest corruption) resided on the confines of Bulgaria, Croatia, and Dalmatia, and governed by his vicars the filial congregations of Italy and France. Ref. 034 From that era, a minute scrutiny might prolong and perpetuate the chain of tradition. At the end of the last age, the sect or colony still inhabited the valleys of Mount Hæmus, where their ignorance and poverty were more frequently tormented by the Greek clergy than by the Turkish government. The modern Paulicians have lost all memory of their origin; and their religion is disgraced by the worship of the cross, and the practice of bloody sacrifice, which some captives have imported from the wilds of Tartary. Ref. 035
In the West, the first teachers of the Manichæan theology had been repulsed by the people, or suppressed by the prince. The favour and success of the Paulicians in the eleventh and twelfth centuries must be imputed to the strong, though secret, discontent which armed the most pious Christians against the church of Rome. Her avarice was oppressive, her despotism odious; less degenerate perhaps than the Greeks in the worship of saints and images, her innovations were more rapid and scandalous; she had rigorously defined and imposed the doctrine of transubstantiation: the lives of the Latin clergy were more corrupt, and the Eastern bishops might pass for the successors of the apostles, if they were compared with the lordly prelates who wielded by turns the crosier, the sceptre, and the sword. Three different roads might introduce the Paulicians into the heart of Europe. After the conversion of Hungary, the pilgrims who visited Jerusalem might safely follow the course of the Danube; in their journey and return they passed through Philippopolis; and the sectaries, disguising their name and heresy,