Columbia subject headings:
Elite (Social sciences)--Scandinavia--History--To 1500.
Scandinavia--Social conditions.
Social classes--Scandinavia--History--To 1500.
Harvard subject headings:
Princeton subject headings:
Elite (Social sciences)--Scandinavia--History--To 1500.
Scandinavia--Social conditions.
Social classes--Scandinavia--History--To 1500.