Deputy: An officer Who Administers the Functions of a Superior in his Absence

And there was no king in Edom; a deputy served as king.

…an attendant of the proconsul, Sergius Paulus. The proconsul, a man of intelligence, summoned Barnabas and Saul because he wanted to hear the word of God.

But Elymas the sorcerer (for that is what his name means) opposed them and tried to turn the proconsul from the faith.

While Gallio was proconsul of Achaia, the Jews coordinated an attack on Paul and brought him before the judgment seat.

So if Demetrius and his fellow craftsmen have a complaint against anyone, the courts are open and proconsuls are available. Let them bring charges against one another there.