The question of the kingship was over; but a vague alarm had been created, which answered the purpose of the optimates. Caesar was at their mercy any day. They had sworn to maintain all his acts. They had sworn, after Cicero’s speech, individually and collectively to defend his life. Caesar, whether he believed them sincere or not, had taken them at their word, and came daily to the Senate unarmed and without a guard. He had a protection in the people. If the optimates killed him without preparation, they knew that they would be immediately massacred. But an atmosphere of suspicion and uncertainty had been successfully generated, of which they determined to take immediate advantage. There were no troops in the city. Lepidus, Caesar’s master of the horse, who had been appointed governor of Gaul, was outside the gates, with a few cohorts; but Lepidus was a person of feeble character, and they trusted to be able to deal with him.

Sixty senators, in all, were parties to the immediate conspiracy. Of these nine-tenths were members of the old faction whom Caesar had pardoned, and who, of all his acts, resented most that he had been able to pardon them. They were the men who had stayed at home, like Cicero, from the fields of Thapsus and Munda, and had pretended penitence and submission that they might take an easier road to rid themselves of their enemy. Their motives were the ambition of their order and personal hatred of Caesar; but they persuaded themselves that they were animated by patriotism, and as, in their hands, the Republic had been a mockery of liberty, so they aimed at restoring it by a mock tyrannicide. Their oaths and their professions were nothing to them. If they were entitled to kill Caesar, they were entitled equally to deceive him. No stronger evidence is needed of the demoralization of the Roman Senate than the completeness with which they were able to disguise from themselves the baseness of their treachery. One man only they were able to attract into co-operation who had a reputation for honesty, and could be conceived, without absurdity, to be animated by a disinterested purpose.

Marcus Brutus was the son of Cato’s sister Servilia, the friend, and a scandal said the mistress, of Caesar. That he was Caesar’s son was not too absurd for the credulity of Roman drawing-rooms. Brutus himself could not have believed in the existence of such a relation, for he was deeply attached to his mother; and although, under the influence of his uncle Cato, he had taken the Senate’s side in the war, he had accepted afterward not pardon only from Caesar, but favors of many kinds, for which he had professed, and probably felt, some real gratitude. He had married Cato’s daughter Portia, and on Cato’s death had published a eulogy upon him. Caesar left him free to think and write what he pleased. He had made him praetor; he had nominated him to the governorship of Macedonia. Brutus was perhaps the only member of the senatorial party in whom Caesar felt genuine confidence. His known integrity, and Caesar’s acknowledged regard for him, made his accession to the conspiracy an object of particular importance. The name of Brutus would be a guarantee to the people of rectitude of intention. Brutus, as the world went, was of more than average honesty. He had sworn to be faithful to Caesar as the rest had sworn, and an oath with him was not a thing to be emotionalized away; but he was a fanatical republican, a man of gloomy habits, given to dreams and omens, and easily liable to be influenced by appeals to visionary feelings. Caius Cassius, his brother-in-law, was employed to work upon him. Cassius, too, was praetor that year, having been also nominated to office by Caesar. He knew Brutus, he knew where and how to move him. He reminded him of the great traditions of his name. A Brutus had delivered Rome from the Tarquins. The blood of a Brutus was consecrated to liberty. This, too, was mockery; Brutus, who expelled the Tarquins, put his sons to death, and died childless; Marcus Brutus came of good plebeian family, with no glories of tyrannicide about them; but an imaginary genealogy suited well with the spurious heroics which veiled the motives of Caesar’s murderers.

Brutus, once wrought upon, became with Cassius the most ardent in the cause which assumed the aspect to him of a sacred duty. Behind them were the crowd of senators of the familiar faction, and others worse than they, who had not even the excuse of having been partisans of the beaten cause; men who had fought at Caesar’s side till the war was over, and believed, like Labienus, that to them Caesar owed his fortune, and that he alone ought not to reap the harvest. One of these was Trebonius, who had misconducted himself in Spain, and was smarting under the recollection of his own failures. Trebonius had long before sounded Antony on the desirableness of removing their chief. Antony, though he remained himself true, had unfortunately kept his friend’s counsel. Trebonius had been named by Caesar for a future consulship, but a distant reward was too little for him. Another and a yet baser traitor was Decimus Brutus, whom Caesar valued and trusted beyond all his officers, whom he had selected as guardian for Augustus, and had noticed, as was seen afterward, with special affection in his will. The services of these men were invaluable to the conspirators on account of their influence with the army. Decimus Brutus, like Labienus, had enriched himself in Caesar’s campaigns, and had amassed near half a million of English money. [20] It may have been easy to persuade him and Trebonius that a grateful Republic would consider no recompense too large to men who would sacrifice their commander to their country. To Caesar they could be no more than satellites; the first prizes of the Empire would be offered to the choice of the saviours of the constitution.

So composed was this memorable band, to whom was to fall the bad distinction of completing the ruin of the senatorial rule. Caesar would have spared something of it; enough, perhaps, to have thrown up shoots again as soon as he had himself passed away in the common course of nature. By combining in a focus the most hateful characteristics of the order, by revolting the moral instincts of mankind by ingratitude and treachery, they stripped their cause by their own hands of the false glamour which they hoped to throw over it. The profligacy and avarice, the cynical disregard of obligation, which had marked the Senate’s supremacy for a century, had exhibited abundantly their unfitness for the high functions which had descended to them; but custom and natural tenderness for a form of government, the past history of which had been so glorious, might have continued still to shield them from the penalty of their iniquities. The murder of Caesar filled the measure of their crimes, and gave the last and necessary impulse to the closing act of the revolution.

Thus the ides of March drew near. Caesar was to set out in a few days for Parthia. Decimus Brutus was going, as governor, to the north of Italy, Lepidus to Gaul, Marcus Brutus to Macedonia, and Trebonius to Asia Minor. Antony, Caesar’s colleague in the consulship, was to remain in Italy. Dolabella, Cicero’s son-in-law, was to be consul with him as soon as Caesar should have left for the East. The foreign appointments were all made for five years, and in another week the party would be scattered. The time for action had come, if action there was to be. Papers were dropped in Brutus’s room, bidding him awake from his sleep. On the statue of Junius Brutus some hot republican wrote “Would that thou wast alive!” The assassination in itself was easy, for Caesar would take no precautions. So portentous an intention could not be kept entirely secret; many friends warned him to beware; but he disdained too heartily the worst that his enemies could do to him to vex himself with thinking of them, and he forbade the subject to be mentioned any more in his presence. Portents, prophecies, soothsayings, frightful aspects in the sacrifices, natural growths of alarm and excitement, were equally vain. “Am I to be frightened,” he said, in answer to some report of the haruspices, “because a sheep is without a heart?”

[March 14, B.C. 44.] An important meeting of the Senate had been called for the ides (the 15th) of the month. The Pontifices, it was whispered, intended to bring on again the question of the kingship before Caesar’s departure. The occasion would be appropriate. The senate-house itself was a convenient scene of operations. The conspirators met at supper the evening before at Cassius’s house. Cicero, to his regret, was not invited. The plan was simple, and was rapidly arranged. Caesar would attend unarmed. The senators not in the secret would be unarmed also. The party who intended to act were to provide themselves with poniards, which could be easily concealed in their paper boxes. So far all was simple; but a question rose whether Caesar only was to be killed, or whether Antony and Lepidus were to be despatched along with him. They decided that Caesar’s death would be sufficient. To spill blood without necessity would mar, it was thought, the sublimity of their exploit. Some of them liked Antony. None supposed that either he or Lepidus would be dangerous when Caesar was gone. In this resolution Cicero thought that they made a fatal mistake; [21] fine emotions were good in their place, in the perorations of speeches and such like; Antony, as Cicero admitted, had been signally kind to him; but the killing Caesar was a serious business, and his friends should have died along with him. It was determined otherwise. Antony and Lepidus were not to be touched. For the rest, the assassins had merely to be in their places in the Senate in good time. When Caesar entered, Trebonius was to detain Antony in conversation at the door. The others were to gather about Caesar’s chair on pretence of presenting a petition, and so could make an end. A gang of gladiators were to be secreted in the adjoining theatre to be ready should any unforeseen difficulty present itself.

The same evening, the 14th of March, Caesar was at a “Last Supper” at the house of Lepidus. The conversation turned on death, and on the kind of death which was most to be desired. Caesar, who was signing papers while the rest wore talking, looked up and said, “A sudden one.” When great men die, imagination insists that all nature shall have felt the shock. Strange stories were told in after years of the uneasy labors of the elements that night.

A little ere the mightiest Julius fell,
The graves did open, and the sheeted dead
Did squeak and jibber in the Roman streets.

The armor of Mars, which stood in the hall of the Pontifical Palace, crashed down upon the pavement. The door of Caesar’s room flew open. Calpurnia dreamt her husband was murdered, and that she saw him ascending into heaven, and received by the hand of God. [22] In the morning the sacrifices were again unfavorable. Caesar was restless. Some natural disorder affected his spirits, and his spirits were reacting on his body. Contrary to his usual habit, he gave way to depression. He decided, at his wife’s entreaty, that he would not attend the Senate that day.