This article is dedicated to an encomium on Saint George which was only partially published in the 97th volume of Migne’s Patrology. It was translated into Russian in the 16th century by Andrey Kurbsky who used the Latin translation from the Surius’s collection De probatis sanctorum historiis. A critical text of the missing part together with a translation into Russian is given and some questions concerning the text and the authorship are considered.