Columbia subject headings:
Political corruption--Europe--History.
Sale of public office--Europe--History.
Social classes--Europe--History.
Social mobility--Europe--History.
Harvard subject headings:
Political corruption--Europe--History--Congresses.
Sale of public office--Europe--History--Congresses.
Social classes--Europe--History--Congresses.
Social mobility--Europe--History--Congresses.
Princeton subject headings:
Sale of public office--Europe--History--Congresses.
Social mobility--Europe--History--Congresses.