Columbia subject headings:
Harvard subject headings:
Germany--Politics and government--1789-1900
Hatzfeldt, Sophie, Gräfin von, 1805-1881.
Nobility--Germany--Biography
Socialism--Germany--19th century.
Women in the labor movement--Germany--Biography.
Women--Germany--Biography.
Princeton subject headings:
Germany--Noblity--Biography.
Hatzfeldt, Sophie, Gräfin von, 1805-1881.