province. Gratian was amused by protestations of doubtful fidelity, and the hopes of a support, which could not be effectual; till the arrival of Andragathius, the general of the cavalry of Maximus, put an end to his suspense. That resolute officer executed, without remorse, the orders or the intention of the usurper. Gratian, as he rose from supper, was delivered into the hands of the assassin: and his body was denied to the pious and pressing entreaties of his brother Valentinian. The death of the emperor was followed by that of his powerful general Mellobaudes, the king of the Franks; who maintained, to the last moment of his life, the ambiguous reputation, which is the just recompense of obscure and subtle policy. These executions might be necessary to the public safety: but the successful usurper, whose power was acknowledged by all the provinces of the West, had the merit, and the satisfaction, of boasting, that, except those who had perished by the chance of war, his triumph was not stained by the blood of the Romans.

The events of this revolution had passed in such rapid succession, that it would have been impossible for Theodosius to march to the relief of his benefactor, before he received the intelligence of his defeat and death. During the season of sincere grief, or ostentatious mourning, the Eastern emperor was interrupted by the arrival of the principal chamberlain of Maximus; and the choice of a venerable old man, for an office which was usually exercised by eunuchs, announced to the court of Constantinople the gravity and temperance of the British usurper. The ambassador condescended to justify, or excuse, the conduct of his master; and to protest, in specious language, that the murder of Gratian had been perpetrated, without his knowledge or consent, by the precipitate zeal of the soldiers. But he proceeded, in a firm and equal tone, to offer Theodosius the alternative of peace, or war. The speech of the ambassador concluded with a spirited declaration, that although Maximus, as a Roman, and as the father of his people, would choose rather to employ his forces in the common defence of the republic, he was armed and prepared, if his friendship should be rejected, to dispute, in a field of battle, the empire of the world. An immediate and peremptory answer was required; but it was extremely difficult for Theodosius to satisfy, on this important occasion, either the feelings of his own mind, or the expectations of the public. The imperious voice of honor and gratitude called aloud for revenge. From the liberality of Gratian, he had received the Imperial diadem; his patience would encourage the odious suspicion, that he was more deeply sensible of former injuries, than of recent obligations; and if he accepted the friendship, he must seem to share the guilt, of the assassin. Even the principles of justice, and the interest of society, would receive a fatal blow from the impunity of Maximus; and the example of successful usurpation would tend to dissolve the artificial fabric of government, and once more to replunge the empire in the crimes and calamities of the preceding age. But, as the sentiments of gratitude and honor should invariably regulate the conduct of an individual, they may be overbalanced in the mind of a sovereign, by the sense of superior duties; and the maxims both of justice and humanity must permit the escape of an atrocious criminal, if an innocent people would be involved in the consequences of his punishment. The assassin of Gratian had usurped, but he actually possessed, the most warlike provinces of the empire: the East was exhausted by the misfortunes, and even by the success, of the Gothic war; and it was seriously to be apprehended, that, after the vital strength of the republic had been wasted in a doubtful and destructive contest, the feeble conqueror would remain an easy prey to the Barbarians of the North. These weighty considerations engaged Theodosius to dissemble his resentment, and to accept the alliance of the tyrant. But he stipulated, that Maximus should content himself with the possession of the countries beyond the Alps. The brother of Gratian was confirmed and secured in the sovereignty of Italy, Africa, and the Western Illyricum; and some honorable conditions were inserted in the treaty, to protect the memory, and the laws, of the deceased emperor. According to the custom of the age, the images of the three Imperial colleagues were exhibited to the veneration of the people; nor should it be lightly supposed, that, in the moment of a solemn reconciliation, Theodosius secretly cherished the intention of perfidy and revenge.

The contempt of Gratian for the Roman soldiers had exposed him to the fatal effects of their resentment. His profound veneration for the Christian clergy was rewarded by the applause and gratitude of a powerful order, which has claimed, in every age, the privilege of dispensing honors, both on earth and in heaven. The orthodox bishops bewailed his death, and their own irreparable loss; but they were soon comforted by the discovery, that Gratian had committed the sceptre of the East to the hands of a prince, whose humble faith and fervent zeal, were supported by the spirit and abilities of a more vigorous character. Among the benefactors of the church, the fame of Constantine has been rivalled by the glory of Theodosius.