Columbia subject headings:
Harvard subject headings:
Catholic Church--Foreign relations--Netherlands.
Catholic Church--Netherlands--History--Sources.
Netherlands--Foreign relations--Catholic Church.
Princeton subject headings:
Catholic Church--Foreign relations--Belgium--Flanders.
Catholic Church. Apostolic Nunciature (Flanders, Belgium)--History--Sources.
Flanders (Belgium)--Foreign relations--Catholic Church.
Papal nuncios.