Joannes Lemigius Thrax, as Rubeus, the sixteenth-century historian of Ravenna, calls him, ruled in Ravenna from 611 to 615, and in the latter year was assassinated there apparently in the midst of a popular rising, though what this really was we do not know. His successor, the eunuch Eleutherius (616-620), seems to have found the now fragmentary imperial state in Italy in utter confusion, and indeed on the verge of dissolution. Naples had been usurped by a certain Joannes of Compsa, perhaps "a wealthy Samnite landowner," who proclaimed himself lord there, and it is obvious that even in Ravenna there was grave discontent. Eleutherius soon disposed of the usurper of Naples, but only to find himself faced by a renewal of the Lombard war, which he seems to have prevented by consenting to pay the yearly tribute which perhaps Gregory the Great had promised when he made a separate peace with the Lombard in 593, when Rome was practically in the hands of the barbarian. It was obvious that the imperial cause was failing. That the exarch thought so is obvious from the fact that in 619 he actually assumed the diadem and proclaimed himself emperor in Ravenna, and set out with an army along the Flaminian Way for Rome to get himself crowned by the pope Boniface V. But the eunuch was before his time; moreover, he was a defeated and not a victorious general. At Luceoli upon the Flaminian Way, not far from Gualdo Tadino where Narses had broken Totila, in that glorious place his own soldiers slew him and sent his head to Heraclius.

Of his immediate successor we know nothing—not even his name,[1] but in or about 625 Isaac the Armenian was appointed and he ruled, as his epitaph tells us, for eighteen years (625-644). Isaac's rule was not fortunate for the imperialists. He is probably to be acquitted of the murder of Taso, Lombard duke of Tuscia, but it is certain that Rothari, the Lombard king in his time, "took all the cities of the Romans which are situated on the sea-coast from Luna in Tuscany to the boundary of the Franks; also he took and destroyed Opitergium, a city between Treviso and Friuli, and with the Romans of Ravenna he fought at the river of Aemilia which is called Scultenna (Panaro). In this fight 8000 fell on the Roman side, the rest fleeing away."[2]

[Footnote 1: Mr. Hodgkin (op. cit. vi. 157) suggests that the predecessor of Isaac was that Euselnus who, as ambassador for Constantinople, persuaded, or is said to have persuaded, Adalwald, King of the Lombards since the death of his father, Agilulf (615), to slay all his chief men and nobles, and to hand over the Lombard kingdom to the empire; but was poisoned, it is suggested, by Isaac in Ravenna, whither he had fled when he had killed twelve among them. Ariwald succeeded him (625).]

[Footnote 2: Paulus Diaconus, cf. Hodgkin, vi. 168.]

[Illustration: THE SARCOPHAGUS OF EXARCH ISAAC]

Nor was this all. It is in Isaac's time that the growing jealousy of the empire in regard to the papacy for the first time breaks into flame. Isaac, who as exarch had the right to "approve" the election of the pope, on the accession of Severinus (638) sent Maurice his chartularius to Rome as his ambassador. This Maurice it seems was eager against the papal power, and finding an opportunity in Rome suddenly seized the Lateran and its wealth at the head of "the Roman army," and wrote to Isaac that he might come and enjoy the spoil. The exarch presently arrived in Rome, resided in the Lateran during eight days, banished the cardinals, and proceeded to steal everything he could lay his hands on in the name of the emperor, to whom he sent a part of the booty. A little later Maurice attempted to repeat his rape, but doubtless hoping to enrich himself he began by repudiating Isaac, who then dealt with him, had him brought northward, and beheaded at a place called Ficulae, twelve miles from Ravenna; but before he could decide what punishment to mete out to Maurice's accomplices the exarch himself died, "smitten," as it was said, "by God," and the exarchate was filled apparently by Theodore Calliopas (644-646).

Theodore Calliopas was twice exarch. Of his first administration we know nothing at all; but in 646 he was succeeded by Plato (646-649), whose name we learn from a letter of the emperor Constans II. to his successor Olympius (649-652), who had been imperial chamberlain in Constantinople. Theodore Calliopas was then again appointed and ruled in Ravenna for eleven years (653-664).

We have seen the empire and the papacy politically at enmity and certainly bent on attaining different political ends in Italy and the West, and this is emphasised by the economic condition of Italy which the empire taxed heavily. Philosophically Constantinople had never perhaps been very eagerly Catholic—or must one say papal? But now at this dangerous moment a doctrine definitely heretical was to be officially adopted there and supported by emperor and patriarch with insistance and perhaps enthusiasm. Heraclius, the grandfather of Constans II., had asserted the Monothelete heresy which maintained that although Christ had two distinct natures yet He had but one Will—his human will being merged in the divine. The patriarch of Constantinople, always jealous of the popes, eagerly upheld this doctrine which the papacy continually and consistently denounced. Now Constans II. cared for none of these things. He refused to allow that either pope or patriarch was right, but as though he had been living in the sixteenth instead of the seventh century gravely announced that "the sacred Scriptures, the works of the Fathers, the Decrees of the five General Councils are enough for us;" and asked: "Why should men seek to go beyond these?" Roundly he refused to allow the question to be either supported or attacked.

Now the whole of the West was very heartily with the pope in sentiment; but save for the bishops of Italy he stood alone against the great patriarchates of the East. Nevertheless, he refused to be silent and to obey the emperor. Therefore Olympius, Constans' chamberlain in 649, came to Italy as exarch with orders to arrest the pope and bring him to Constantinople: this it seemed to him a prudent thing to do; he was to judge for himself. Olympius decided it was not a prudent thing to do. He found the Italian bishops and the people eagerly Catholic. There is a story that he attempted instead to take the pope's life as he said Mass, but this is probably untrue, for we find pope and exarch presently excellent friends. He went on into Sicily to meet the first invasion of the Saracens in that island, and died there of the pestilence.

Theodore Calliopas was appointed exarch for the second time as his successor in 652. He had either less sagacity or less scruple than his predecessor, for in the following year he appeared with an army in Rome. He found the pope ill and in bed before the high altar of S. John Lateran. He surrounded the church and entered it with his men, who were guilty of violence and desecration. But the pope, to save bloodshed, surrendered himself to the exarch, shouting as he emerged from the church, "Anathema to all who say that Martin has changed a jot or tittle of the Faith Anathema to all who do not remain in his orthodox Faith even to the death." Through the tumultuous and weeping city the pope passed to the palace of the exarch upon the Palatine Hill. He entered it a prisoner and was presently smuggled away on board ship to Constantinople, where he was examined and condemned to death, insulted in the Hippodrome, and his sentence commuted to imprisonment and exile to Cherson, where he died in 655.