–XII
>th centuries, which has been preserved in fragments thanks to the work of Mirkhond and some other late Eastern historians. For this remarkable discovery A. Yu. Mitrofanov also refers to the works of G. V. Vernadsky, who noted the spread of the Christianity among some Mongolian tribes in the XI
>th–XII
>th centuries. The author A. Yu. Mitrofanov compares this phenomenon of the Christianity among some Mongolian tribes with the hypothesis of the Christian confession of some of the Seljuk’s sons, in particular, Mikail.
Furthermore A. Yu. Mitrofanov also examines in detail the fragments of the work of Anna Komnena, which were dedicated to the phenomenon of so called Byzantine imposture. According to A. Yu. Mitrofanov, one of the first examples of Byzantine imposture arrived at the end of the reign of Emperor Leo III the Isaurian (717–741) with the appearance of the impostor Pseudo-Tiberius Pergamenus, who declared himself the surviving son of Emperor Justinian II Rhinotmetos (685–695, 705–711). The name of Justinian’s II son was Tiberius and he has been murdered as a child of eleven years old in 711 in front of his grandmother – Empress Anastasia. Drawing on the research of Paul Speck and others[9], A. Yu. Mitrofanov suggests that the hypothetical story of the “Life of Leo” (*Vita Leonis) about the murder of Tiberius, which had been reproduced in the “Chronography” of Theophanes the Confessor, probably has been interpolated during the rebellion of Pseudo-Tiberius Pergamenus to uncover him.
According to sources of the “dossier” of George Synkellos, one of them is, for example, a hypothetical “History of Leo and Constantine” (*HL), which had been followed by Theophanes the Confessor in the narrative of Byzantine history after the year 718, Pseudo-Tiberius Pergamenus received the support of the Umayyad Caliph Hisham Ibn Abdal-Malik (723–743)[10]. Such reliance on external enemies of the Byzantine Empire was characteristic of later Byzantine impostors, to whom Anna Komnena was contemporary. That is why Mitrofanov examines in detail the fragments of Anna Komnena on the impostors Pseudo-Michael and Pseudo-Diogenes I Furthermore the Author mentions out of the Russian Chronicles the rebellion of the impostor Pseudo-Diogenes II “Devgenevich” and the rebellion of his son, the Pseudo-Prince Vasilko Leonovich.