As it is with the cathedral, so it is with the _Arcivescovado_. Of the old palace of the Bishops of Ravenna only a few walls, a tower, and a wonderful little chapel remain. What we see now is work of the sixteenth and the seventeenth centuries after a restoration at the end of the nineteenth. The old vast palace which has been destroyed was the work of many archbishops, achieved during many centuries. It consisted of a series of buildings grouped about the palace which the archbishop S. Peter Chrysologus built in the fifth century, and its most magnificent part was due to S. Maximian, archbishop of Ravenna in the time of Justinian. All their work, which we would so gladly see, is gone except the little chapel of S. Peter Chrysologus, which he built and signed in one of the arches in the fifth century.[1] [Footnote 1: According to Rasponi the chapel was dedicated originally to S. Andrea and is to be identified with the Monasterium di S. Andrea, which was not built by S. Peter Chrysologus (429-_c_. 449), but by Peter II. (494-_c_. 519). Cf. Rasponi, _Note Marginali al Liber Pontificalis di Agnello Ravennate_ (Atti e Memorie della R. Dep. di Stor. Pat. per la Romagna, iii. 27), Bologna, 1909-1910.] Of this great man Agnellus records: "He was beautiful in appearance, lovely in aspect; before him there was no bishop like him in wisdom, nor any other after him." He was a native of Imola, then called Forum Cornelii, and was ordained deacon by the bishop of that city, one Cornelius, of whom he always speaks with affection and gratitude. When the bishop of Ravenna died, it is said the clergy of the cathedral, then just built or building, with the people, chose a successor, and besought the bishop of Imola to go to Rome to obtain the confirmation of the pope. Cornelius took with him his deacon Peter, and the pope, who had been commanded so to do by the Prince of the Apostles in a dream, refused to ratify the election already made, but proposed Peter the deacon as the bishop chosen by S. Peter himself. Peter was there and then consecrated bishop, was conducted to Ravenna, and received with acclamation. He is said to have found a certain amount of paganism still remaining in his diocese, and to have completely extirpated it. He often preached before the Augusta Galla Placidia and her son Valentinian III., and he was perhaps the first archbishop of the see, Ravenna till his time having been suffragan to Milan. He seems to have died about 450 in Imola. Among his many buildings, which included the monastery of S. Andrea at Classis, is the little chapel now dedicated in his honour in the _Arcivescovado_ of Ravenna. It is perhaps the only one of his works which remains. The little square chamber, out of which the sanctuary opens, is upheld by four arches, which are covered, as is the vaulting, with most precious mosaics, still of the fifth century, though they have been and are still being much restored.