Columbia subject headings:
Harvard subject headings:
Catholic Church. Curia Romana.
Christianity and politics--Catholic Church--History--16th century.
Christianity and politics--Catholic Church--History--17th century.
Germany--History--1517-1648.
Holy Roman Empire--History--1517-1648.
Papacy--History
Princeton subject headings:
Catholic Church--Foreign relations--Germany.
Catholic Church--Foreign relations--Holy Roman Empire.
Germany--Foreign relations--Catholic Church.
Holy Roman Empire--Church history.
Holy Roman Empire--Foreign relations--Catholic Church.
Papal legates--Germany--History.