Whether Egerius Lævius Tusculanus (Priscian, Inst., IV, p. 129 Keil) was dictator of the whole of the Latin league, as Beloch (Italischer Bund, p. 180) thinks, or not, according to Wissowa (Religion und Kultus der Roemer, p. 199), at least a dictator was the head of some sort of a Latin league, and gives us the name of the office (Pais, Storia di Roma, I, p. 335).
If it be objected that the survival of the dictatorship as a priestly office (Dictator Albanus, Orelli 2293, Marquardt, Staatsverw., I, p. 149, n. 2) means only a dictator for Alba Longa, rather than for the league of which Alba Longa seems to have been at one time the head, there can be no question about the Dictator Latina(rum) fer(iarum) caussa of the year 497 (C.I.L., I.p. 434 Fasti Cos. Capitolini), the same as in the year 208 B.C. (Livy XXVII, 33, 6). This survival is an exact parallel of the rex sacrorum in Rome (for references and discussion, see Marquardt, Staatsverw., III, p. 321), and the rex sacrificolus of Varro, de l.l. VI, 31. Compare Jordan, Topog. d. Stadt Rom, I, p. 508, n. 32, and Wissowa, Rel. u. Kult d. Roemer, p. 432. Note also that there were reges sacrorum in Lanuvium (C.I.L, XIV, 2089), Tusculum (C.I.L, XIV, 2634), Velitræ (C.I.L., X, 8417), Bovillæ (C.I.L., XIV, 2431 == VI, 2125). Compare also rex nemorensis, Suetonius, Caligula, 35 (Wissowa, Rel. u. Kult. d. Roemer, p. 199).
C.I.L., XIV, 2990, 3000, 3001, 3002.