Columbia subject headings:
Charles I, King of England, 1600-1649--Captivity.
Great Britain--History--Civil War, 1642-1649.
Harvard subject headings:
Charles I, King of England, 1600-1649
Charles I, King of England, 1600-1649--Captivity.
Great Britain--History--Civil War, 1642-1649.
Princeton subject headings:
Charles I, King of England, 1600-1649.
Great Britain--History--Civil War, 1642-1649.