Columbia subject headings:
Harvard subject headings:
Aristocracy (Social class)--Norway--History--To 1500.
Church and state--Norway--History--To 1500.
Communication--Political aspects--Norway--History--To 1500.
Ideology--Political aspects--Norway--History--To 1500.
Monarchy--Norway--History--To 1500.
Norway--History--1030-1397.
Norway--Kings and rulers--History.
Norway--Social conditions.
Political customs and rites--Norway--History--To 1500.
Social interaction--Political aspects--Norway--History--To 1500.
Princeton subject headings:
Aristocracy (Social class)--Norway--History--To 1500.
Church and state--Norway--History--To 1500.
Communication--Political aspects--Norway--History--To 1500.
Ideology--Political aspects--Norway--History--To 1500.
Monarchy--Norway--History--To 1500.
Norway--History--1030-1397.
Norway--Kings and rulers.
Political customs and rites--Norway--History--To 1500.
Social interaction--Political aspects--Norway--History--To 1500.