of the Middle Ages, who had his own prison and his own gallows.  The political result was much the same in each case.  Just as the feudal lord, with his private jurisdiction and his hosts of retainers, became a peril to good government and national unity until he was brought to order by a strong king like our Henry II. or Henry VII., so the owner of a large familia of many hundreds of slaves may almost be said to have been outside of the State; undoubtedly he became a serious peril to the good order of the capital.  The part played by the slaves in the political disturbances of Cicero’s time was no mean one.  One or two instances will show this.  Saturninus, in the year 100, when attacked by Marius under orders from the senate, had hoisted a pilleus, or cap of liberty which the emancipated slave wore, as a signal to the slaves of the city that they might expect their liberty if they supported him;[356] and Marius a few years later took the same step when himself attacked by Sulla.  Catiline, in 63, Sallust assures us, believed it possible to raise the slaves of the city in aid of his revolutionary plans, and they flocked to him in great numbers; but he afterwards abandoned his intention, thinking that to mix up the cause of citizens with that of slaves would not be judicious.[357] It is here too that the gladiator slaves first meet us as a political arm; Cicero had the next spring to defend P. Sulla on the charge, among others, of having bought gladiators during the conspiracy with seditious views, and the senate had to direct that the bands of these dangerous men should be dispersed to Capua and other municipal towns at a distance.  Later on we frequently hear of their being used as private soldiery, and the government in the last years of the Republic ceased to be able to control them.[358] Again, in defending Sestius, Cicero asserts that Clodius in his tribunate had organised a levy of slaves under the name of collegia, for purposes of violence, slaughter, and rapine; and even if this is an exaggeration, it shows that such proceedings were not deemed impossible.[359] And apart from the actual use of slaves for revolutionary objects, or as private body-guards, it is clear from Cicero’s correspondence that as an important part of a great man’s retinue they might indirectly have influence in elections and on other political occasions.  Quintus Cicero, in his little treatise on electioneering,[360] urges his brother to make himself agreeable to his tribesmen, neighbours, clients, freedmen, and even slaves, “for nearly all the talk which affects one’s public reputation emanates from domestic sources.”  And Marcus himself, in the last letter he wrote before he fled into exile in 58, declares that all his friends are promising him not only their own aid, but that of their clients, freedmen, and slaves,—­promises which doubtless might have been kept had he stayed to take advantage of them.[361]