mandatary

n. [ L. mandatarius, fr. mandatum a charge, commission, order: cf. F. 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. [ 1913 Webster ]

2. (Law) One who undertakes to discharge a specific business commission; a mandatory. Wharton. [ 1913 Webster ]