Columbia subject headings:
Ethelred, King of England.
Great Britain--History--Ethelred II, 979-1016.
Great Britain--Kings and rulers--Biography.
Harvard subject headings:
Ethelred II, King of England, 968?-1016.
Great Britain--History--Ethelred II, 979-1016.
Great Britain--Kings and rulers--Biography.
Princeton subject headings:
Ethelred II, King of England, 968?-1016.
Great Britain--History--Ethelred II, 979-1016.
Great Britain--Kings and rulers--Biography.