Columbia subject headings:
Harvard subject headings:
Bulls, Papal--History--Congresses.
Catholic Church--Foreign relations--France--Lorraine--Congresses.
Dioceses--France--Lorraine--History--Sources--Congresses.
Lorraine (France)--Church history--Congresses.
Lorraine (France)--Foreign relations--Catholic Church--Congresses.
Papacy--History--Congresses.
Princeton subject headings:
Bulls, Papal--History--Congresses.
Catholic Church--Foreign relations--France--Lorraine--Congresses.
Dioceses--France--Lorraine--History--Sources--Congresses.
Lorraine (France)--Church history--Congresses.
Lorraine (France)--Foreign relations--Catholic Church--Congresses.
Papacy--History--Congresses.