Columbia subject headings:
Harvard subject headings:
Catholic Church--Foreign relations--Denmark--History--19th century.
Catholic Church--Foreign relations--Germany--History--19th century.
Denmark--Church history--19th century.
Denmark--Foreign relations--Catholic Church--History--19th century.
Germany--Church history--19th century.
Germany--Foreign relations--Catholic Church
Laurent, Johannes Theodor, 1804-1884.
Lüpke, Carl Anton, 1775-1855.
Vicars apostolic--Denmark--History--19th century.
Vicars apostolic--Germany--History--19th century.
Princeton subject headings:
Catholic Church--Foreign relations--Denmark.
Catholic Church--Foreign relations--Germany, Northern.
Denmark--Foreign relations--Catholic Church.
Germany, Northern--Foreign relations--Catholic Church.
Laurent, Johannes Theodor, 1804-1884.
Lüpke, Carl Anton, 1775-1855.