procurator
In the canon law of the Catholic Church, a one who acts on behalf of and by virtue of the authority of another
en-GB/pɹəˈkjʊɹeɪtə/
en-US/ˈpɹɑkjəˌɹeɪdɚ/
In the canon law of the Catholic Church, a one who acts on behalf of and by virtue of the authority of another