Mandatary
Mandatary , noun
[Latin mandatarius, from mandatum a charge, commission, order: compare French mandataire. See Mandate.]
1.
One to whom a command or charge is given; hence, specifically, a person to whom the pope has, by his prerogative, given a mandate or order for his benefice. — Ayliffe
2.
(Law) One who undertakes to discharge a specific business commission; a mandatory. — Wharton