As soon as Constantine was informed of the murder of his father, and that a rebel had assumed the purple in Sicily, he hastened thither in person to avenge his death, and extinguish the rebellion. To satisfy his vengeance, the patrician Justinian, a man of high character, compromised in the rebellion, was treated with great severity, and his son Germanus with a degree of inhumanity that would have been recorded by the clergy against Constans as an instance of the grossest barbarity. The return of the emperor to Constantinople was signalised by a singular sedition of the troops in Asia Minor. They marched towards the capital, and having encamped on the Asiatic shores of the Bosporus, demanded that Constantine should admit his two brothers, on whom he had conferred the rank of augustus, to an equal share in the public administration, in order that the Holy Trinity in heaven, which governs the spiritual world, might be represented by a human trinity, to govern the political empire of the Christians. The very proposal is a proof of the complete supremacy of the civil over the ecclesiastical authority, in the eyes of the people, and the strongest evidence, that in the public opinion of the age the emperor was regarded as the head of the church. Such reasoning as the rebels used could be rebutted by no arguments, and Constantine had energy enough to hang the leaders of the sedition, and sufficient moderation not to molest his brothers. But several years later, either from increased suspicions or from some intrigues on their part, he deprived them of the rank of augustus, and condemned them to have their noses cut off (681 A.D.). Theophanes[d] says that the brothers of Constantine IV lost their noses in 669, but were not deprived of the imperial title until 681.
SARACEN WARS AND SIEGE OF CONSTANTINOPLE (672 A.D.)
[672-678 A.D.]
The great object of the imperial policy at this period was to oppose the progress of the Mohammedans. Constans had succeeded in arresting their conquests, but Constantine soon found that they would give the empire no rest unless he could secure it by his victories. He had hardly quitted Sicily to return to Constantinople, before an Arab expedition from Alexandria invaded the island and stormed the city of Syracuse, and, after plundering the treasures accumulated by Constans, immediately abandoned the place. In Africa the war was continued with various success, but the Christians were not long left without any succours from Constantine, while Moawyah supplied the Saracens with strong reinforcements. In spite of the courage and enthusiasm of the Mohammedans, the native Christian population maintained their ground with firmness, and carried on the war with such vigour that in the year 676 a native African leader, who commanded the united forces of the Romans and Berbers, captured the newly founded city of Kairowan, which at a subsequent period became renowned as the capital of the Fatimite caliphs.
Saracenic metal work Brazier
The ambition of the caliph Moawyah induced him to aspire at the conquest of the Roman Empire; and the military organisation of the Arabian power, which enabled the caliph to direct the whole resources of his dominions to any single object of conquest, seemed to promise success to the enterprise. A powerful expedition was sent to besiege Constantinople. The time required for the preparation of such an armament did not enable the Saracens to arrive at the Bosporus without passing a winter on the coast of Asia Minor; and on their arrival in the spring of the year 672, they found that the emperor had made every preparation for defence. Their forces, however, were so numerous that they were sufficient to invest Constantinople by sea and land. The troops occupied the whole of the land side of the triangle on which the city is constructed, while the fleet effectually blockaded the port.
The Saracens failed in all their assaults, both by sea and land; but the Romans, instead of celebrating their own valour and discipline, attributed their success principally to the use of the Greek fire, which was invented shortly before this siege, and was first used on this occasion. The military art had declined during the preceding century, as rapidly as every other branch of national culture; and the resources of the mighty empire of the Arabs were so limited by the ignorance and bad administration of its rulers, that the caliph was unable to maintain his forces before Constantinople during the winter. The Saracen army was nevertheless enabled to collect sufficient supplies at Cyzicus to make that place a winter station, while their powerful fleet commanded the Hellespont and secured their communications with Syria. When spring returned, the fleet again transported the army to encamp under the walls of Constantinople. This strange mode of besieging cities, unattempted since the times the Dorians had invaded Peloponnesus, was continued for seven years; but in this warfare the Saracens suffered far more severely than the Romans, and were at last compelled to abandon their enterprise.
The land forces tried to effect their retreat through Asia Minor, but were entirely cut off in the attempt; and a tempest destroyed the greater part of their fleet off the coast of Pamphylia. During the time that this great body of his forces was employed against Constantinople, Moawyah sent a division of his troops to invade Crete, which had been visited by a Saracen army in 651. The island was now compelled to pay tribute, but the inhabitants were treated with great mildness, as it was the policy of the caliph at this time to conciliate the good opinion of the Christians by his liberal government, in order to pave the way for future conquests. Moawyah carried his religious tolerance so far as to rebuild the church of Edessa at the intercession of his Christian subjects.
The destruction of the Saracen expedition against Constantinople, and the advantage which the mountaineers of Lebanon had contrived to take of the absence of the Arab troops, by carrying their incursions into the plains of Syria, convinced Moawyah of the necessity of peace. The hardy mountaineers of Lebanon, called Mardaites, had been increased in numbers, and supplied with wealth, in consequence of the retreat into their country of a mass of native Syrians who had fled before the Arabs. They consisted chiefly of melchites and monothelites, and on that account they had adhered to the cause of the Roman Empire when the monophysites joined the Saracens. Their Syrian origin renders it probable that they were ancestors of the Maronites, though the desire of some Maronite historians to show that their countrymen were always perfectly orthodox has perplexed a question which of itself was by no means of easy solution. The political state of the empire required peace; and the orthodox Constantine did not feel personally inclined to run any risk in order to protect the monothelite mardaites. Peace was concluded between the emperor and the caliph in the year 678, Moawyah consenting to pay the Romans annually three thousand pounds of gold, fifty slaves, and fifty Arabian horses. It appears strange that a prince, possessing the power and resources at the command of Moawyah, should submit to these conditions; but the fact proves that policy, not pride, was the rule of the caliph’s conduct, and that the advancement of his real power, and of the spiritual interests of the Mohammedan religion, were of more consequence in his eyes than any notions of earthly dignity.