Chap. XX. Galerius having effected the expulsion of the two old men, began to consider himself alone as the sovereign of the Roman empire. Necessity had required the appointment of Constantius to the first rank; but Galerius made small account of one who was of an easy temper, and of health declining and precarious. He looked for the speedy death of Constantius . And although that prince should recover, it seemed not difficult to force him to put off the imperial purple; for what else could he do, if pressed by his three colleagues to abdicate? Galerius had Licinius ever about his person, his old and intimate acquaintance, and his earliest companion in arms, whose counsels he used in the management of all affairs; yet he would not nominate Licinius to the dignity of Cæsar , with the title of son , for he purposed to nominate him, in the room of Constantius , to the dignity of emperor , with the title of brother , while he himself might hold sovereign authority, and rule over the whole globe with unbounded licence. After that, he meant to have solemnized the vicennial festival; to have conferred on his son Candidianus , then a boy of nine years of age, the office of Cæsar ; and, in conclusion, to have resigned, as Diocletian had done. And thus, Licinius and Severus being emperors, and Maximin and Candidianus in the next station of Cæsars , he fancied that, environed as it were by an impregnable wall, he should lead an old age of security and peace. Such were his projects; but God, whom he had made his adversary, frustrated all those imaginations.