Columbia subject headings:
Greece--Kings and rulers--Pictorial works.
Monarchy--Greece--History--Pictorial works.
Princes--Greece--Pictorial works.
Princesses--Greece--Pictorial works.
Queens--Greece--Pictorial works.
Harvard subject headings:
Greece--Kings and rulers--Pictorial works.
Kings and rulers--Greece--Pictorial works.
Monarchy--Greece--History--Pictorial works.
Princes--Greece--Pictorial works.
Princesses--Greece--Pictorial works.
Queens--Greece--Pictorial works.
Princeton subject headings:
Glücksburg, House of--Pictorial works.