The collection includes eyewitness accounts of the Red Terror of 1918-1922. in Petrograd and the relatives of those who died as a result of Bolshevik repressions against class aliens. These memoirs were published in different years in the emigrant press, some were preserved in the collection of the historian S.P. Melgunov in the Archives of the Hoover Institution for War, Revolution and Peace (Palo Alto, USA). A significant part of the memoirs is devoted to the tragic fate of the four Grand Dukes of the Romanovs (Pavel Alexandrovich, Nikolai and Georgy Mikhailovich and Dmitry Konstantinovich), shot in the Peter and Paul Fortress in January 1919. Most of the materials are published in Russia for the first time. The collection of memoirs is supplemented by an article by modern researchers about the results of search work and discovery of the remains of victims of the Red Terror on the territory of the Peter and Paul Fortress in St. Petersburg.