Columbia subject headings:
Harvard subject headings:
Denmark--History--Exhibitions.
Denmark--Kings and rulers--Exhibitions.
Denmark--Relations--Germany--Hesse--Exhibitions.
Hesse (Germany)--History--Exhibitions.
Hesse (Germany)--Kings and rulers--Exhibitions.
Hesse (Germany)--Relations--Denmark--Exhibitions.
Princeton subject headings:
Denmark--History--Coup d'état, 1536.
Denmark--Relations--Germany--Hesse.
Hesse (Germany)--History.
Hesse (Germany)--Relations--Denmark.