"Bulgakov, Konstantin"@en . "Director of the St. Petersburg Post Office and Russian Postal Department"@en . "Konstantin Yakovlevich Bulgakov"@en . . . . . "1782Z"^^ . . "1835-10-29Z"^^ . "1835Z"^^ . . . . . . "1835Z"^^ . . . . . . . . . . "Konstantin Yakovlevich Bulgakov (Russian: \u041A\u043E\u043D\u0441\u0442\u0430\u043D\u0442\u0438\u043D \u042F\u043A\u043E\u0432\u043B\u0435\u0432\u0438\u0447 \u0411\u0443\u043B\u0433\u0430\u043A\u043E\u0432; 31 December 1782 \u2013 29 October 1835) was a Russian diplomat, privy councillor, and postal administrator.Konstantin Bulgakov served as the Director of the Moscow Post Office. Since 1819 he was the Director of Saint Petersburg Post Office. Bulgakov later became the Director of the Postal Department of the Russian Empire."@en . . "1797Z"^^ . "1782-12-31Z"^^ .