Title: Potonuvshiĭ mir B.A. Ėngelʹgardta
Subjects: Biography, History, Politics and government, Political prisoners
Places: Russia, Soviet Union
People: B. A. Ėngelʹgardt (1877-1962), Engelhardt family
Time periods: 20th century, Nicholas II, 1894-1917, Revolution, 1917-1921