The advocate of the guards endeavored to justify by arguments the power which they asserted by arms; and to maintain that, according to the purest principles of the constitution, _their_ consent was essentially necessary in the appointment of an emperor. The election of consuls, of generals, and of magistrates, however it had been recently usurped by the senate, was the ancient and undoubted right of the Roman people. But where was the Roman people to be found? Not surely amongst the mixed multitude of slaves and strangers that filled the streets of Rome; a servile populace, as devoid of spirit as destitute of property. The defenders of the state, selected from the flower of the Italian youth, and trained in the exercise of arms and virtue, were the genuine representatives of the people, and the best entitled to elect the military chief of the republic. These assertions, however defective in reason, became unanswerable when the fierce Prætorians increased their weight, by throwing, like the barbarian conqueror of Rome, their swords into the scale. The Prætorians had violated the sanctity of the throne by the atrocious murder of Pertinax; they dishonored the majesty of it by their subsequent conduct. The camp was without a leader, for even the præfect Lætus, who had excited the tempest, prudently declined the public indignation. Amidst the wild disorder, Sulpicianus, the emperor’s father-in-law, and governor of the city, who had been sent to the camp on the first alarm of mutiny, was endeavoring to calm the fury of the multitude, when he was silenced by the clamorous return of the murderers, bearing on a lance the head of Pertinax. Though history has accustomed us to observe every principle and every passion yielding to the imperious dictates of ambition, it is scarcely credible that, in these moments of horror, Sulpicianus should have aspired to ascend a throne polluted with the recent blood of so near a relation and so excellent a prince. He had already begun to use the only effectual argument, and to treat for the Imperial dignity; but the more prudent of the Prætorians, apprehensive that, in this private contract, they should not obtain a just price for so valuable a commodity, ran out upon the ramparts; and, with a loud voice, proclaimed that the Roman world was to be disposed of to the best bidder by public auction.