internuncio

• It was the wish of the Catholics that the system which had endured ever since the 16th century of a "Dutch mission" under the direction of an Italian prelate (generally the internuncio) should come to an end, and that they should have bishops of their own. —  History of Holland
• Negotiations to that effect were, moreover, pending; and Urban VIII had offered himself as arbitrator through the medium of Jules Mazarin, [133] a young man of twenty-eight years of age, whom he had appointed internuncio for that purpose. —  The Life of Marie de Medicis — Volume 3

Allen's Synonyms and Antonyms