125 (return) [ The Abbé Dubos, who has examined with accuracy (see Hist. de la Monarchie Françoise, tom. i. p. 41-100, edit. 1742) the institutions of Augustus and of Constantine, observes, that if Otho had been put to death the day before he executed his conspiracy, Otho would now appear in history as innocent as Corbulo.] 126 (return) [ Zosimus, l. ii. p. 110. Before the end of the reign of Constantius, the _magistri militum_ were already increased to four. See Velesius ad Ammian. l. xvi. c. 7.] 127 (return) [ Though the military counts and dukes are frequently mentioned, both in history and the codes, we must have recourse to the Notitia for the exact knowledge of their number and stations. For the institution, rank, privileges, &c., of the counts in general see Cod. Theod. l. vi. tit. xii.—xx., with the commentary of Godefroy.] The memory of Constantine has been deservedly censured for another innovation, which corrupted military discipline and prepared the ruin of the empire. The nineteen years which preceded his final victory over Licinius, had been a period of license and intestine war. The rivals who contended for the possession of the Roman world, had withdrawn the greatest part of their forces from the guard of the general frontier; and the principal cities which formed the boundary of their respective dominions were filled with soldiers, who considered their countrymen as their most implacable enemies. After the use of these internal garrisons had ceased with the civil war, the conqueror wanted either wisdom or firmness to revive the severe discipline of Diocletian, and to suppress a fatal indulgence, which habit had endeared and almost confirmed to the military order. From the reign of Constantine, a popular and even legal distinction was admitted between the _Palatines_ 128 and the _Borderers;_ the troops of the court, as they were improperly styled, and the troops of the frontier. The former, elevated by the superiority of their pay and privileges, were permitted, except in the extraordinary emergencies of war, to occupy their tranquil stations in the heart of the provinces. The most flourishing cities were oppressed by the intolerable weight of quarters. The soldiers insensibly forgot the virtues of their profession, and contracted only the vices of civil life. They were either degraded by the industry of mechanic trades, or enervated by the luxury of baths and theatres. They soon became careless of their martial exercises, curious in their diet and apparel; and while they inspired terror to the subjects of the empire, they trembled at the hostile approach of the Barbarians. 129 The chain of fortifications which Diocletian and his