Columbia subject headings:
Nobility--Legal status, laws, etc.--Belgium--History.
Nobility--Legal status, laws, etc.--France--History.
Titles of honor and nobility--Law and legislation--Belgium--History.
Titles of honor and nobility--Law and legislation--France--History.
Harvard subject headings:
Nobility--Legal status, laws, etc.--Belgium--History.
Nobility--Legal status, laws, etc.--France--History.
Titles of honor and nobility--Law and legislation--Belgium--History.
Titles of honor and nobility--Law and legislation--France--History.
Princeton subject headings: