Columbia subject headings:
Harvard subject headings:
Europe, Northern--History, Local--Congresses.
Germany, Northern--Foreign relations--Sweden--Congresses.
Germany--History--1648-1740--Congresses.
Lower Saxony (Germany)--History--17th century--Congresses.
Lower Saxony (Germany)--History--18th century--Congresses.
Sweden--Foreign relations--Germany, Northern--Congresses.
Princeton subject headings:
Europe, Northern--History, Local--Congresses.
Germany, Northern--Foreign relations--Sweden--Congresses.
Germany--History--1648-1740--Congresses.
Lower Saxony (Germany)--History--17th century--Congresses.
Lower Saxony (Germany)--History--18th century--Congresses.
Sweden--Foreign relations--Germany, Northern--Congresses.