The lex Iulia municipalis was a law of uncertain content and scope concerning municipal institutions passed by Iulius Caesar or less likely Augustus. It is attested in a single inscription from Patavium, commemorating a certain Marcus Iunius Sabinus as quattuorvir aediliciae potestatis “in accordance with the lex Iulia municipalis” (CIL V 2864 = ILS 5406) and may have been a piece of legislation dealing specifically with Patavium or a general regulation dealing with municipal institutions in Italy, and possibly reorganising aedilician powers of local magistrates. It may be alluded to by Cicero, Fam. VI.18.1, mentioning a ban on heralds (praecones) taking municipal office.1Earlier scholarship frequently identified the lex Iulia municipalis with a collection of material from Roman statutes on a bronze tablet broken into two pieces found in 1732 in the territory of the city of Heraclea (CIL I2 593; Roman Statutes, no. 24).