Columbia subject headings:
Buckingham, George Villiers, Duke of, 1592-1628.
Concini, Concino, maréchal d'Ancre, approximately 1575-1617.
Great Britain--History--Charles I, 1625-1649.
Sejanus, Lucius Aelius, -31.
Harvard subject headings:
Buckingham, George Villiers, Duke of, 1592-1628.
Concini, Concino, maréchal d'Ancre, approximately 1575-1617.
Sejanus.
Princeton subject headings: