Курляндская губерния
Sergei Mikhailovich Tretyakov (Russian: Серге́й Миха́йлович Третьяко́в; 20 June 1892, Goldingen, Courland Governorate (modern day Kuldīga, Latvia) – September 10, 1937, Moscow) was a Soviet Russian constructivist writer, playwright, poet, and special correspondent for "Pravda".