Yuri Mamin was born in 1946 . His grandfather , Dmitry Dmitrievich Mamin , was the People ’s Commissar of the Petrograd river routes and a descendant of Northern Tatars . He was repressed and shot during Stalin 's Great Purge in 1937 . According to Yuri Mamin 's maternal grandmother , his grandfather considered the writer Dmitry Mamin-Sibiryak a relative . Galina Dmitrievna Mamina , the film director ’s mother , was an art historian and theater worker who taught theater history at the Leningrad Higher Trade-Union School of Culture . Several of her students became directors of concert halls and heads of Departments of Culture
repressed
Great Purge
Yuri Mamin