What is Konstantin Bulgakov?
{{Infobox person | name = Konstantin Yakovlevich Bulgakov | native_name = Константин Яковлевич Булгаков | native_name_lang = rus | image = Konstantin Bulgakov 1782 1835.jpg | image_size = 200px | alt = Konstantin Bulgakov | birth_date = {{Birth date|1782|12|31}} | birth_place = Constantinople | death_date = {{Death date and age|1835|10|29|1782|12|31}} | death_place = Saint Petersburg | death_cause = stroke | resting_place = Saint Petersburg | resting_place_coordinates = {{Coord|59|55|11|N|30|23|19|E|type:landmark:RU|display=inline}} | nationality = Russian Empire | citizenship = Russian Empire | education = [[Secondary education|secondary]] | alma_mater = Saint Peter's School | occupation = diplomat, postal administrator, privy councillor | years_active = 1797–1835 | known_for = correspondence, writing | title = Director of the St. Petersburg Post Office and Russian Postal Department | term = 1819–1835 | successor = [[Feodor Pryanishnikov]] | spouse = {{marriage|Maria Varlam|1814|1835}} | children = 5 including:<br/>son Alexander Bulgakov (1816–1873)<br/>daughter Sofia Perovsky (1818–1902)<br/>daughter Maria Bulgakov (1823–1848) | parents = Yakov Bulgakov (1743–1809)<br/>Catherine Amber (?–1809) | relatives = brother [[Alexander Bulgakov]] (1781–1863) | awards = {{plainlist| * {{awd|Order of St. Vladimir|1821||}} * {{awd|Order of the White Eagle|1832||}}}} }} '''Konstantin Yakovlevich Bulgakov'''{{efn|{{lang-ru|Константин Яковлевич Булгаков}}.}} (31 December 1782{{spaced ndash}}29 October 1835) was a Russian [[diplomat]], privy councillor, and [[Postal Service|postal]] administrator.<r