[ULPIANUS libro primo ad edictum praetoris. ] §50.1.25.prMagistratus municipales cum unum magistratum administrent, etiam unius hominis uicem sustinent.
[ULPIAN, On the Edict of the Praetor, Book I] Since municipal magistrates administer a single magistracy, they also sustain the role of a single person.
et hoc plerumque quidem lege municipali eis datur: uerum et si non sit datum, dummodo non denegatum, moribus competit.
And this is indeed generally granted to them by municipal law; but even if it has not been granted, as long as it has not been denied, it is competent by custom.