An agent or attorney.
A tax collector.
The governor of a small imperial province.
A legal officer who both investigates and prosecutes crimes, found in some inquisitorial legal systems, particularly communist or formerly communist states – see public procurator
A person acting on behalf of, or representing, another person.
In the Roman Catholic and some other churches, a cleric acting as local representative of a higher ranking member of the clergy.
In the Church of England, the priest of a parish, receiving a salary or stipend but not tithes.