34 The Latin word imperium, of which Josephus gives a standard Greek equivalent ( ἡγεμονία: cf. Cassius Dio 60.15.1, 6; 60.17.8; 60.25.6 etc., though ἐξουσία is also used; Augustus, Res Gest. 1.8; H.J. Mason 1974:144-51), is difficult to render by any single English word. Literally meaning something like “the power to command and be obeyed (> imperare),” it had an essential place in Roman political theory. Imperium first belonged to the ancient Roman kings, then to the consuls, other senior magistrates, and commanders, and in the empire to the princeps (emperor) and governors within their provinces. See Lintott (1993a:22, 41-2). In the Life Josephus reserves the word for Roman emperors (cf. § 423); elsewhere he uses it often of Rome in the abstract and of emperors and governors. Cf. War 1.3, 23, 355; 2.168, 205, 214, 248, 264, 284, 357, 360, 385, 555; 3.7; 4.499, 502, etc. In the Antiquities his usage is broader: Ant. 1.188, 215, 234; 2.175, etc. In the Life (183, 373, 398; 347, 424), however, he again reserves the cognates ἡγεμονεύω and ἡγεμών for Roman officials. For a full account of the concept in Roman parlance, see Lintott 1993.