Columbia subject headings:
Denmark--Relations--Sweden.
Mecklenburg-Vorpommern (Germany)--History--18th century.
Northern War, 1700-1721.
Pomerania (Poland and Germany)--History--18th century.
Sweden--Relations--Denmark.
Harvard subject headings:
Denmark--Relations--Sweden.
Mecklenburg-Vorpommern (Germany)--History--18th century.
Northern War, 1700-1721.
Pomerania (Poland and Germany)--History--18th century.
Sweden--Relations--Denmark.
Princeton subject headings: