"The domestics of the Basilian dynasty carried on the work of political change," says Finlay,[21] "by filling the public offices with their own creatures, and thereby destroying the power of that body of State officials, whose admirable organisation had repeatedly saved the Empire from falling into anarchy under tyrants or from being ruined by peculation under aristocratic influence. In this manner the scientific fabric of the imperial power, founded by Augustus, was at last ruined in the East as it had been destroyed in the West. The Emperors broke the government to pieces before strangers destroyed the Empire.
"The revolution which undermined the systematic administration was already consummated before the rebellion of the aristocracy placed the imperial crown on the head of Isaac Comnenus. No organised body of trained officials any longer existed to resist the egoistical pretensions of the new intruders into ministerial authority. The Emperor could now make his household steward prime minister, and the governor of a province could appoint his butler prefect of the police. The Church and the law alone preserved some degree of systematic organisation and independent character. It was not in the power of an emperor to make a man a lawyer or a priest with the same ease with which he could appoint him a chamberlain or a minister of State."
The decay of which the general causes are thus sketched can clearly be traced in the series of historians who give us the records of the years from the accession of John Comnenus to the conquest of Constantinople by the Crusaders, from the year 1057, that is, to the year 1204. Psellus, monk, secretary of State, philosopher, statesman, gives, as we have already seen, a close account of the intrigues of the court. Michael Altaleiates records the years 1034-1079. Nicephorus Bryennius and his wife, Anna Comnena, wrote from within the story of the politics of Alexius Comnenus, the former to some extent, the latter very greatly, influenced by the classic revival, and endeavouring to form their work on classic models. John Cinnamus, Nicetas Acominatos, John Scylitzes, John Zonaras, are all chroniclers who have special sources of information; and the result is that for the century of decay which culminated in the collapse of the Empire before the Latins, we have information almost complete.
The Emperor Isaac was assisted at the first by the able patriarch Michael Cerularius, who put into exercise all the claims of his predecessors to power and independence, to equality with Rome, and to superiority over the churches related to the patriarchate. Strife soon broke out between Emperor and patriarch. Michael appeared in the red boots which marked the imperial dignity, declaring that he was the equal of the Emperor; and of the Emperor himself he said, in what seems to have been a popular proverb, "Oven, I built you, and I can knock you down." He was seized and banished to Proconnesus.
After the retirement of Isaac, Constantine Ducas, like the Comneni a Cappadocian, and a friend of their own, reigned for eight years, 1059-1067, and left the reputation of a man anxious only to save money, and thus unable to protect the frontiers of the Empire. Under him we learn the importance of the Emperor's personal guard of Varangians—a body of barbarian warriors founded early in the eleventh century, and consisting at first of Russians, whom the wars of Nicephorus Phocas, John Tzimisces and Basil Bulgaroktonos had taught the Empire to respect; and of Scandinavians, and later of Danes, and after the Norman Conquest of fugitive Englishmen, who, rather than serve the foreign conquerors of their own land, gladly came to win fame and wealth as the guardians of the Cæsar's throne. Constantine XI. paid the Varangians while he neglected the rest of his army. The Empire paid the penalty in the ravaging of Armenia by the Seljuk Turks, and of Bulgaria by the Tartars. When he died in 1067, already the name of Alp-Arslan, the Sultan of the Seljuks, struck terror into the Asiatic provinces of the Empire, and the sceptre of the Cæsars fell to Michael VII., a child who could not protect what his father had not cared to defend. The mother of the young Emperor, Eudocia, married a gallant general, Romanus Diogenes, who, with the title of joint Emperor, won but little power in the palace, but was readily allowed to lead the armies in the field. Of his campaigns it is only needful to say that, while for a time he held back the Seljuks, in 1071, at Manzikert, on the Armenian frontier, his troops were scattered by the overwhelming hordes of the barbarians, and when night fell Alp-Arslan placed his foot upon the neck of the prostrate Cæsar, his captive.
In Constantinople a new revolution followed the news of the Emperor's defeat. John Ducas, brother of Constantine XI., for a time held the post of Regent for his nephew. When Romanus was released from captivity he was seized and his eyes were put out, a crime which resulted in his death. The scenes of blood and treachery which marked these years, when the Court still kept up its splendours in the presence of pestilence, famine, and decay, are almost incredible; but the vengeance that was surely coming shows the weakness that resulted from the reign of corruption and crime. Michael VII. was called Parapinakes, "the peck-stealer," a name "given him because in a year of famine he sold the measure of wheat to his subjects a fourth short of its proper contents." He was overthrown by an adventurer named Nicephorus Botoniates, whose reign of three years was a period of vice and waste which brought the Empire rapidly nearer to its fall. Michael VII. retired, like Romanus, to the Monastery of the Studium, where as titular bishop of Ephesus, he passed the last years of his life in peace. Three years exhausted the patience of the nobles with the aged and debauched Nicephorus. Maria, once wife of Michael VII. and now wife of his successor, formed a plot against him, and from a number of conspirators, Alexius Comnenus, son of the Emperor Isaac, was chosen to lead the troops who determined to give a new Cæsar to the exhausted Empire. In 1081 the friends of the conspirators escaped through the gate of Blachernae with horses they had stolen from the Imperial stables. They returned with an army: the German guards who held the gate of Charisius (Edirnè Kapou) were bribed, and the adherents of Comnenus poured into the heart of the city. A battle at first seemed certain, for the Varangians stood boldly across the forum of Constantine to defend the approaches to the great palace. But when George Palaeologus, a gallant officer connected by marriage with the Comneni, secured the fleet, the heart of the aged Nicephorus failed him, and he fled to S. Sophia, whence he was removed like so many of his predecessors to a monastery.
Alexius Comnenus was not strong enough to restrain the motley rabble who had entered in his train. The city was given over to pillage. The very palaces and monasteries were spoiled by the barbarians from the Balkans. It was from this date that the ruin of the city began. If the churches still maintained their relics and their jewels, the commercial prosperity, which all through these years of imperial corruption and weakness it had struggled to maintain, now began to slip from its grasp. It was clear that property was no more safe than life; and as the Italian cities began to secure the commerce of the Levant, the merchants of Constantinople fell behind in the race for wealth, and saw the trade that had been theirs taken by the Venetians, the Pisans and the Genoese, who now settled at their very gates.
Alexius Comnenus was at first not sole Emperor. Constantine Ducas, the son of Michael VII., was also called Emperor, but he soon died. Alexius then reigned alone, but not without many plots against him. Within, the city managed to suppress the conspirators; without, he suffered defeat from the Normans at Durazzo, and preserved with difficulty the Thessalian province. He won fame among his people as a persecutor of Paulicians and Bogomils; and Basil, a monk, was entrapped by Alexius into a confession of his heretical opinions and then burnt as a heretic in the Hippodrome, to the delight of the people of Constantinople. He kept off the Turks, though they were now (1092) settled so near as to have Smyrna for their capital. But his chief danger came from the Crusades.
In spite of the breach between the Churches it was impossible for the Eastern Emperor openly to do otherwise than welcome the hosts who in response to the preaching of Peter the Hermit and the call of Urban II. marched through Hungary and Bulgaria and arrived outside the land walls in a ragged and disordered condition. Hugh of Vermandois had landed near Durazzo, but had been treated almost as a foreigner, and having been made to do homage to Alexius, awaited in the imperial city the arrival of the rest of the hosts. His treatment was resented by Godfrey of Bouillon; but the skill and tact of Alexius triumphed. In the palace of the Blachernae, while the hosts were encamped outside the walls, the Emperor received the leaders, among them Godfrey, Bohemond, and Peter the Hermit himself, and by cajoling some, bribing others, threatening those who seemed weakest, he procured that they all should do him homage and promise to convey to him all of his Empire that they should recover from the Turks.
To the people of Constantinople the warriors of the West seemed like ignorant and half-brutal children, ever gabbling, boasting, and changeable. The warlike garb of the Latin priests and bishops disgusted the Greeks and widened the breach between the Churches. The climax seemed to come on the day when the chiefs did homage to the Emperor. Thus the story is told by Anna Comnena, who was herself then fourteen years old, and may not improbably have witnessed the scene.