'Proconsul' in the Bible

who was with the proconsul, Sergius Paulus, a man of understanding. This man summoned Barnabas and Saul, and sought to hear the word of God.

But Elymas the sorcerer (for so is his name by interpretation) withstood them, seeking to turn aside the proconsul from the faith.

Then the proconsul, when he saw what was done, believed, being astonished at the teaching of the Lord.

But when Gallio was proconsul of Achaia, the Jews with one accord rose up against Paul and brought him before the judgment seat,