Union of the Russian People
During World War I, the church was headed by protoiereus Ioann Vostorgov, a nationalist preacher and a leader of the Black-Hundredist Union of the Russian People. Vostorgov was arrested by Bolsheviks in 1918 on a pretext of embezzling nationalized church properties and was executed in 1919. The church briefly enjoyed Vladimir Lenin's "personal interest"; in 1923 it became a public museum, though religious services continued until 1929.