Letters of E.S. Sozonov (1879-1910) - Russian revolutionary terrorist, Socialist Revolutionary, murderer Pleve, were addressed to his father Sergei Lazarevich Sozonov, mother Akulina Loginovna, brother Zot Sergeevich (he also includes letters addressed conditionally to "Zina"), wife of brother Lyubov Alexandrovna, cousin brother Ivan Merkurievich Sozonov and, finally, one (dying) letter to the bride Maria Alekseevna Prokofieva.