Columbia subject headings:
Nobility--Europe--Congresses.
Queens in art--Congresses.
Queens--Europe--Congresses.
Harvard subject headings:
Human body--Social aspects
Nobility--Europe--Congresses.
Queens in art--Congresses.
Queens--Europe--Congresses.
Sex role--History
Princeton subject headings:
Divine right of kings--Congresses.
Human body--Political aspects--Congresses.
Queens--Europe--History--Congresses.