WAR OF THE BROTHER EMPERORS
A Roman Emperor
After the partition of the empire, three years had scarcely elapsed before the sons of Constantine seemed impatient to convince mankind that they were incapable of contenting themselves with the dominions which they were unqualified to govern. The eldest of those princes soon complained that he was defrauded of his just proportion of the spoils of their murdered kinsmen; and though he might yield to the superior guilt and merit of Constantius, he exacted from Constans the cession of the African provinces, as an equivalent for the rich countries of Macedonia and Greece, which his brother had acquired by the death of Dalmatius. The want of sincerity which Constantine experienced in a tedious and fruitless negotiation exasperated the fierceness of his temper; and he eagerly listened to those favourites who suggested to him that his honour, as well as his interest, was concerned in the prosecution of the quarrel. At the head of a tumultuary band, suited for rapine rather than for conquest, he suddenly broke into the dominions of Constans, by way of the Julian Alps, and the country round Aquileia felt the first effects of his resentment. The measures of Constans, who then resided in Dacia, were directed with more prudence and ability. On the news of his brother’s invasion, he detached a select and disciplined body of his Illyrian troops, proposing to follow them in person with the remainder of his forces. But the conduct of his lieutenants soon terminated the unnatural contest. By the artful appearances of flight Constantine was betrayed into an ambuscade, which had been concealed in a wood, where the rash youth, with a few attendants, was surprised, surrounded, and slain. His body, after it had been found in the obscure stream of the Alsa, obtained the honours of an imperial sepulchre; but his provinces transferred their allegiance to the conqueror, who, refusing to admit his elder brother Constantius to any share in these new acquisitions, maintained the undisputed possession of more than two-thirds of the Roman Empire (340).
[350-351 A.D.]
The fate of Constans himself was delayed about ten years longer, and the revenge of his brother’s death was reserved for the more ignoble hand of a domestic traitor. The pernicious tendency of the system introduced by Constantine was displayed in the feeble administration of his sons, who, by their vices and weakness, soon lost the esteem and affections of their people. The pride assumed by Constans, from the unmerited success of his arms, was rendered more contemptible by his want of abilities and application. His fond partiality towards some German captives, distinguished only by the charms of youth, was an object of scandal to the people; and Magnentius, an ambitious soldier, who was himself of barbarian extraction, was encouraged by the public discontent to assert the honour of the Roman name. The chosen bands of Jovians and Herculians, who acknowledged Magnentius as their leader, maintained the most respectable and important station in the imperial camp. The friendship of Marcellinus, count of the sacred largesses, supplied with a liberal hand the means of seduction. The soldiers were convinced by the most specious arguments, that the republic summoned them to break the bonds of hereditary servitude; and by the choice of an active and vigilant prince, to reward the same virtues which had raised the ancestors of the degenerate Constans from a private condition to the throne of the world.
As soon as the conspiracy was in readiness for execution, Marcellinus, under the pretence of celebrating his son’s birthday, gave a splendid entertainment to the illustrious and honourable persons of the court of Gaul, which then resided in the city of Augustodunum. The intemperance of the feast was protracted till a very late hour of the night; and the unsuspecting guests were tempted to indulge themselves in a dangerous and guilty freedom of conversation. On a sudden the doors were thrown open, and Magnentius, who had retired for a few moments, returned into the apartment invested with the diadem and purple. The conspirators instantly saluted him with the titles of Augustus and emperor. The surprise, the terror, the intoxication, the ambitious hopes, and the mutual ignorance of the rest of the assembly, prompted them to join their voices to the general acclamation. The guards hastened to take the oath of fidelity, the gates of the town were shut, and before the dawn of day, Magnentius became master of the troops and treasure of the city of Augustodunum. By his secrecy and diligence he entertained some hopes of surprising the person of Constans, who was pursuing in the adjacent forest his favourite amusement of hunting, or perhaps some pleasures of a more private and criminal nature. The rapid progress of fame allowed him, however, an instant for flight, though the desertion of his soldiers and subjects deprived him of the power of resistance. Before he could reach a seaport in Spain, where he intended to embark, he was overtaken near Helena, at the foot of the Pyrenees, by a party of light cavalry, whose chief, regardless of the sanctity of a temple, executed his commission by the murder of the son of Constantine (350).
As soon as the death of Constans had decided this easy but important revolution, the example of the court of Autun was imitated by the provinces of the West. The authority of Magnentius was acknowledged through the whole extent of the two great prefectures of Gaul and Italy; and the usurper prepared, by every act of oppression, to collect a treasure, which might discharge the obligation of an immense donative, and supply the expenses of a civil war.