Columbia subject headings:
Catholic Church--Foreign relations--Germany--Prussia.
Catholic Church. Pope (1800-1823: Pius VII). De salute animarum.
Church and state--Germany--Prussia.
Prussia (Germany)--Foreign relations--Catholic Church.
Harvard subject headings:
Catholic Church--Foreign relations--Germany--Prussia.
Catholic Church. Pope (1800-1823 : Pius VII). De salute animarum.
Church and state--Germany--Prussia
Prussia (Germany)--Foreign relations--Catholic Church.
Princeton subject headings: