Hey! Archbishop IS in Black's:
archbishop. Eccles. law. A church officer who has authority over all ecclesiastical matters within a province.
ecclesiastical authorities. The church's hierarchy, answerable to the Crown... :/
Printed copy · Anthology Volume 8, page 235Printed copy from The Tender For Law Anthology, Volume 8, page 235 (printed 13 June 2014). Added by this site; not part of the Facebook export.