A more thorough explanation:

MINUS LATIUM

Minus Latium refers to the right of citizenship granted to the superior magistrates of provincial colonies in Roman law. It is also known as Latium minus.

When a magistrate from a provincial colony was granted minus Latium, they were given the right to become a Roman citizen and enjoy the privileges that came with it.

This means that the magistrate would have the right to vote, own property, and participate in public life in Rome.

The example illustrates how minus Latium was a way for the Roman Empire to extend citizenship to those who had proven themselves as capable leaders in their respective colonies.