 This opposition motivated his subsequent selection for an ecclesiastical mission in Philadelphia.In 1821, the Propaganda Fide in Rome removed Norfolk, Virginia from the jurisdiction of the Archdiocese of Baltimore, placing it within the new Diocese of Richmond.This upset Matthews, who arranged for Archbishop Ambrose Maréchal of Baltimore to use the diplomatic pouch of the French ambassador to the United States to express his misgivings; the ambassador would deliver the archbishop's letters to French ministers to the Holy See, who would present the communications.