The example of the massacres of the palace diffused a spirit of licentiousness and sedition among the troops of the East, who were no longer restrained by their habits of obedience to a veteran commander.

By the prudence of Constantius, who, from the interview with his brothers in Pannonia, immediately hastened to the banks of the Euphrates, the legions were gradually restored to a sense of duty and discipline; but the season of anarchy had permitted Sapor to form the siege of Nisibis, and to occupy several of the most important fortresses of Mesopotamia.

In Armenia, the renowned Tiridates had long enjoyed the peace and glory which he deserved by his valor and fidelity to the cause of Rome.

The firm alliance which he maintained with Constantine was productive of spiritual as well as of temporal benefits; by the conversion of Tiridates, the character of a saint was applied to that of a hero, the Christian faith was preached and established from the Euphrates to the shores of the Caspian, and Armenia was attached to the empire by the double ties of policy and religion.

But as many of the Armenian nobles still refused to abandon the plurality of their gods and of their wives, the public tranquillity was disturbed by a discontented faction, which insulted the feeble age of their sovereign, and impatiently expected the hour of his death.