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 380 legions of Illyricum, who, under the new titles of Jovians and Herculians, were appointed to perform the service of the Imperial guards. But the most fatal though secret wound, which the senate received from the hands of Diocletian and Maximian, was inflicted by the inevitable operation of their absence. As long as the emperors resided at Rome, that assembly might be oppressed, but it could scarcely be neglected. The successors of Augustus exercised the power of dictating whatever laws their wisdom or caprice might suggest; but those laws were ratified by the sanction of the senate. The model of ancient freedom was preserved in its deliberations and decrees; and wise princes, who respected the prejudices of the Roman people, were in some measure obliged to assume the language and behaviour suitable to the general and first magistrate of the republic. In the armies and in the provinces, they displayed the dignity of monarchs; and, when they fixed their residence at a distance from the capital, they for ever laid aside the dissimulation which Augustus had recommended to his successors. In the exercise of the legislative as well as of the executive power, the sovereign advised with his ministers, instead of consulting the great council of the nation. The name of the senate was mentioned with honour till the last period of the empire; the vanity of its members was still flattered with honorary distinctions; but the assembly, which had so long been the source, and so long the instrument, of power, was respectfully suffered to sink into oblivion. The senate of Rome, losing all connexion with the Imperial court and the actual constitution, was left a venerable but useless monument of antiquity on the Capitoline hill.

When the Roman princes had lost sight of the senate and of their ancient capital, they easily forgot the origin and nature of their legal power. The civil offices of consul, of proconsul, of censor, and of tribune, by the union of which it had been formed, betrayed to the people its republican extraction. Those modest titles were laid aside; and, if they still distinguished their high station by the appellation of Emperor,