Columbia subject headings:
Harvard subject headings:
Marlborough, George Spencer Churchill, Duke of, 1766-1840
Nobility--Great Britain--Biography
Princeton subject headings:
Great Britain--Social life and customs--18th century.
Great Britain--Social life and customs--19th century.
Marlborough, George Spencer Churchill, Duke of, 1766-1840.
Marlborough, Susan Spencer Churchill, Duchess of, 1767-1841.
Nobility--Great Britain--Biography.