Constantine, accompanied by his brother Methodius, was sent to Moravia, where the people received them with expressions of joy. They introduced here the Slavic liturgy, and preached in the Slavic language. One peculiar circumstance served to give to their persons a more than common sanctity. Constantine had been so fortunate as to discover in Cherson the bones of the holy Clement, relics which he every where carried with him. After three or four years, the pope invited the two brethren to Rome, where the possession of these relics procured them great honour and distinction. The pope Adrian, followed by the clergy and people, met them and their treasure before the gates of the city. Both the brothers were consecrated as bishops; those of their Moravian disciples who had accompanied them to Rome, were made priests and deacons. Constantine received the consecration, but did not accept the diocese allotted to him. With the permission of the pope, he adopted the name of Cyril, and died forty days afterwards, Feb. 13, A.D. 868. His remembrance is cherished as holy by the Slavic nations; and even as early as A.D. 1056, we find, in the calendar of the _Evangelium of Ostromir_, the fourteenth of February set down for the celebration of his memory. Methodius returned to Moravia the same year, A.D. 868. He was what was called an _episcopus regionarius_, and had therefore no fixed residence. In the letters of pope John VIII, he is called bishop of Moravia and Pannonia. The first of these countries was at this period the theatre of bloody wars; the Slavic inhabitants of the other had been already converted to Christianity by German priests, as early as A.D. 798. In consequence of this, Methodius found the Latin worship established here, and the Latin language in use. The innovation made by him, however, was of course greatly favoured by the people; who for the first time heard the gospel read to them in a language they understood. But he met with the more opposition from the priests. The whole jealousy of the Romish church seems to have been awakened by Methodius' proceedings. He found however a protector in the pope himself; who feared perhaps an entire alienation of the Slavic population, and their transition to the Oriental church; but was at the same time desirous to preserve the whole authority of the Latin language. In a letter to the Moravian prince Svatopluk, he enjoins expressly, "that in all the Moravian churches the gospel, for the sake of the greater dignity, should be read first in Latin, and afterwards translated into Slavic for the people ignorant of the Latin."