The book by the famous Russian historian Platon Grigorievich Vasenko, published by the Committee for the organization of the celebration of the 300th anniversary of the House of Romanov in 1913, is being republished for the first time. This is perhaps the first scientific study on the genealogy of the Romanovs, which has known significance to the present day; The main advantage of the book is its strict scientific view. The author begins the book by considering the origins of the founder of the dynasty - Andrei Kobyla, a “close boyar” of Grand Duke Simeon the Proud and the founder of the boyar families of the Sheremetevs and Kolychevs. The book ends with the end of the Time of Troubles and the first enterprises of the government of Mikhail Fedorovich Romanov. The book uses illustrations from the first edition. The publication is intended for genealogists, historians, teachers, graduate students, and anyone interested in Russian history.