Columbia subject headings:
Harvard subject headings:
Aristocracy (Political science)--Germany--Rhineland--History--16th century--Congresses.
Aristocracy (Political science)--Germany--Rhineland--History--17th century--Congresses.
Aristocracy (Social class)--Germany--Rhineland--History--16th century--Congresses.
Aristocracy (Social class)--Germany--Rhineland--History--17th century--Congresses.
Germany--History--1517-1648--Congresses.
Germany--History--1648-1740--Congresses.
Princeton subject headings:
Aristocracy (Political science)--Germany--Rhineland--History--16th century.
Aristocracy (Political science)--Germany--Rhineland--History--17th century.
Aristocracy (Social class)--Germany--Rhineland--History--16th century.
Aristocracy (Social class)--Germany--Rhineland--History--17th century.
Germany--History--1517-1648.
Germany--History--1648-1740.