The first of the line prominent in Byzantine annals was the illustrious Manuel Comnenus, who, under Basil II., aided in settling the troubled condition of the East and in reestablishing the Empire on a firm footing. As a result of his labors for the state, Manuel acquired vast estates in Cappadocia, and, from this time, his family ranked as one of the wealthiest and most aristocratic houses of the Byzantine nobility.
Manuel, upon his deathbed, left his two sons, Isaac and John, to the care and the gratitude of his sovereign. The two lads were carefully educated in all the learning and trained in all the manly accomplishments of the day; and their brotherly love became the subject of comment in an age when self-seeking was the most salient characteristic of the aristocratic class. When they attained manhood, both made brilliant marriages which greatly increased the lustre of their family name: Isaac married a captive princess of Bulgaria, and John wedded Anna Dalassena, the daughter of the patrician Dalassenus, nicknamed Charon from the number of enemies he had sent to the infernal regions. Isaac was fated to die childless and his wife is unknown to fame, but Anna, the wife of John, was destined to be the most remarkable woman of her house.
The Empress Theodora, in her last days, had nominated Michael VI.,--Stratioticus,--an aged and decrepit veteran, as her successor; but his elevation was resented by the soldiers, who plotted and successfully carried through a conspiracy by which Michael was dispossessed and Isaac Comnenus, at that time the most popular general of the East, was elevated to the throne. But the usurpation was not attended with the blessings of heaven: Isaac was stricken with disease before he had reigned a full year, and retired to a monastery to die, abdicating the throne and selecting his brother John as his successor. For some unaccountable reason, and much to the chagrin of his wife Anna, whose ambitions were distinctly imperial, John declined the honor, and persisted in his refusal in spite of the entreaties of his wife and relatives, and with a seeming blindness to the welfare of the state. Possibly he felt that a curse rested upon a dynasty which had usurped the throne. Constantine Ducas, another Cappadocian patrician, was then selected; during his reign of seven troubled years he proved himself to be a sorry administrator. His empress, Eudocia Makremvolitissa, and Anna Dalassena are the two dominating personalities who determined the tenor of court intrigue and largely influenced the course of the events of this period. Anna most intensely hated Ducas and all his house, for they were occupying a throne which she thought should have been retained in her own family; and her relations with the empress were those of rivalry or of friendship, in proportion as Eudocia was acting in sympathy with or in opposition to her husband's family.
Constantine XI.--Ducas--was as intensely partisan as Anna; and when he found his end approaching, he wished above all things to assure the elevation of his three children, Michael, Andronicus, and Constantine. Constantine was well aware of the dangers which his dynasty would incur should the empress marry a second time; before conferring upon her the regency of the Empire, he therefore exacted from her a most solemnly attested promise that under no circumstances would she take a second husband. This important document was deposited in the hands of the patriarch, John Xiphilinus. Constantine made the Senate, also, take an oath never to acknowledge any other emperor than one of his own children. Feeling that he had bound his wife by irretrievable bonds, and that every precaution had been taken to assure the implicit fulfilment of his wishes, Constantine breathed his last with a contented mind.
But Eudocia soon discovered the need of a strong arm for the protection of her own rights and those of her sons. A woman of executive gifts, she was also devoted to literary pursuits, and her knowledge of history had taught her with how much reluctance the Byzantines submitted to the sovereignty of a woman. She recalled, too, the experience of the Empress Theophano, who had found prudent guardians for her sons, Basil II. and Constantine IX., in the persons of the soldiers Nicephorus II. and John I., though she was appalled by the vices of this empress, who had married and murdered the first and been scorned by the second guardian. Furthermore, threatening invasions and domestic unrest proved the need of a soldier as her colleague in the Empire. Love came to the assistance of reason, and Eudocia determined to break her vows and to take a second husband.
Romanus Diogenes, the most daring and popular general of the Empire, had been convicted of treason for participation in a conspiracy against her children's throne, and was then in prison awaiting sentence of death from Eudocia as regent. The latter, however, became enamored of her distinguished captive, and his beauty and valor convinced her that he was destined to share with her the throne. The army was clamoring for his release; and when he received a full pardon from the empress-regent, it at first created no suspicion of her romantic designs. The Seljukian Turks were at that time overrunning Cappadocia and it was necessary that the army should be under the control of an able and a daring general. Romanus was therefore raised from the scaffold to the headship of the army.
Before the empress could take any further step toward carrying out her matrimonial intentions, it was necessary to secure possession of the document which evidenced her pledge to her husband that she never would contract a second marriage. Feminine diplomacy enabled her to accomplish this delicate task; and the lack of principle and high moral character in the patriarch caused him to fall readily into the net laid for him by Eudocia.
Xiphilinus at first urged upon her emissary the sanctity of the oath the empress had taken, and the sacred nature of the trust he had assumed; but when it was whispered in his presence that his own brother was destined for the high honor, the patriarch's scruples were relaxed, and he yielded--out of proper regard, as he alleged, for the welfare of the state. He resigned the important paper into the empress's hand, and at her solicitation proposed and carried through a measure in the Senate, favoring her second marriage, and in addition released the senators from their vow never to recognize as emperor any other than a son of Constantine. Great was the confusion of the credulous patriarch when he realized that he had been outwitted by the clever woman, who, when her plans were fully matured, made an official proclamation that she had selected Romanus IV.,--Diogenes,--the most brilliant general of the Empire, to share with her the throne and to act as guardian to her sons.
Her choice was the occasion of much satisfaction to the army and the people, but caused jealousy and dissension in the imperial household. John Ducas, the late emperor's brother, held the rank of Cæsar and was the natural guardian of his nephews; he at once began to conspire for the overthrow of Romanus and the retirement of Eudocia.
The new emperor at once assumed his duties of warding off the enemies of the Empire, and engaged in a deadly conflict with the Seljukian Turks. Though at first successful, his army was finally routed and almost annihilated, and Romanus himself was taken captive, on the fatal field of Manzikert, 1071,--a decisive battle that marked the beginning of the end of Byzantine history and presaged the final conquest of Constantinople by the Turks. Romanus's capture produced a revolution at court. John Ducas seized the reins of government, ostensibly in the interests of Michael VII., son of Constantine; and when Romanus, having been released by his gallant foe, returned to Constantinople, Ducas had him seized and blinded and left to die through neglect. Eudocia was forced to retire to a monastery and take the veil; there she devoted herself to literary labors. She is reputed to be the author of a learned work, still extant, entitled Ionia, a species of historical and mythological dictionary. The last public appearance of the hapless Eudocia was on the occasion of the funeral of the valiant Romanus, which she was permitted to celebrate in an imposing manner.