Columbia subject headings:
Anglo-Saxons--England--Kings and rulers--Biography.
Danes--England--Kings and rulers--Biography.
Ethelred II, King of England, 968?-1016.
Great Britain--History--Anglo-Saxon period, 449-1066.
Great Britain--Kings and rulers--Biography.
Harvard subject headings:
Anglo-Saxons--Kings and rulers--Biography.
Ethelred II, King of England, 968?-1016.
Great Britain--History--Ethelred II, 979-1016.
Great Britain--Kings and rulers--Biography.
Princeton subject headings:
Anglo-Saxons--England--Kings and rulers--Biography.
Danes--England--Kings and rulers--Biography.
Ethelred II, King of England, 968?-1016.
Great Britain--History--Anglo-Saxon period, 449-1066.
Great Britain--Kings and rulers--Biography.