This book is dedicated to the memory of famous Russian writer Mikhail Bulgakov. May 15, 2015 marks the 125th anniversary of his birth. 50 years ago, the novel "Master and Margarita" was first published in Russia, in "Moscow" magazine. Here was used the materials, known to readers from the monographs "House of Margarita" and "Bulgakov and Margarita," which were published in Russia. In addition, new chapters was added. Of particular interest is the love story of Bulgakov's and Princess Kira Kozlovskaya. This story was first described in the book "House of Margarita." The sources of information are memorable books of Russian provinces from 1809 to 1917, address books of Russian cities, literary works, memoirs and archives of Pushkin House in St. Petersburg.