Columbia subject headings:
Catholic Church--Foreign relations--Great Britain.
Consalvi, Ercole, 1757-1824.
Great Britain--Foreign relations--Catholic Church.
Harvard subject headings:
Catholic Church--Foreign relations--Great Britain.
Consalvi, Ercole, 1757-1824.
Great Britain--Foreign relations--Catholic Church.
Princeton subject headings:
Catholic Church--Foreign relations--Great Britain.
Consalvi, Ercole, 1757-1824.
Great Britain--Foreign relations--Catholic Church.