A colleague of Constantine in his sixth consulship in 320 was not Constantius (as is in the text) but Constantine (II) Caesar. Constantine and Constantius Caesar were consuls in 326 but in 326 Bassus was not the praetorian prefect but the praefect of the city. Moreover, Seeck noticed that the decurions are not of interest to the prefect of the city. He also thought that the earlier law to which Constantine alludes here is XVI.2.6 from 1 June 329. He proposed then to correct the dating formula of the present law to CONSTANTINO A. VIII ET CONSTANTINO C. IIII COSS., that is to 18 July 329 (Seeck 1919: 61). But the inscription for Iunius Bassus from Aquae Vivae (AE 1964, 203; see Trismegistos 248279) shows that he was the praetorian prefect for 14 years, so from 318 to 331 (when he became a consul). Most probably then the law was issued in 320 and refers not to XVI.2.6 but to another, not extant, law. See Delmaire 2005: 126-127.