Mark Antony came forward at once, and assumed the position of Caesar's representative and the leader of the party on that side. A will was found among Caesar's effects, and when the will was opened it appeared that large sums of money were left to the Roman people, and other large amounts to a nephew of the deceased, named Octavius, who will be more particularly spoken of hereafter. Antony was named in the will as the executor of it. This and other circumstances seemed to authorize him to come forward as the head and the leader of the Caesar party. Brutus and Cassius, who remained openly in the city after their desperate deed had been performed, were the acknowledged leaders of the other party; while the mass of the people were at first so astounded at the magnitude and suddenness of the revolution which the open and public assassination of a Roman emperor by a Roman Senate denoted, that they knew not what to say or do. In fact, the killing of Julius Caesar, considering the exalted position which he occupied, the rank and station of the men who perpetrated the deed, and the very extraordinary publicity of the scene in which the act was performed, was, doubtless, the most conspicuous and most appalling case of assassination that has ever occurred. The whole population of Rome seemed for some days to be amazed and stupefied by the tidings. At length, however, parties began to be more distinctly formed. The lines of demarkation between them were gradually drawn, and men began to arrange themselves more and more unequivocally on the opposite sides. For a short time the supremacy of Antony over the Caesar party was readily acquiesced in and allowed. At length, however, and before his arrangements were finally matured, he found that he had two formidable competitors upon his own side. These were Octavius and Lepidus. Octavius, who was the nephew of Caesar, already alluded to, was a very accomplished and elegant young man, now about nineteen years of age. He was the son of Julius Caesar's niece.[1] [Footnote 1: This Octavius on his subsequent elevation to imperial power, received the name of Augustus Caesar, and it is by this name that he is generally known in history. He was, however, called Octavius at the commencement of his career, and, to avoid confusion, we shall continue to designate him by this name to the end of our narrative.]