Columbia subject headings:
Harvard subject headings:
Crimean War, 1853-1856
Europe--Politics and government--1848-1871.
Frederick William IV, King of Prussia, 1795-1861.
Prussia (Germany)--Foreign relations--1815-1870.
Princeton subject headings:
Crimean War, 1853-1856.
Europe--Politics and government--1848-1871.
Frederick William IV, King of Prussia, 1795-1861.
Prussia (Germany)--Foreign relations--1815-1870.