The article is dedicated to the research of a book published in 1541 - work of Wenceslas Hajek of Libocany which features about circumstances and consequences of a fire in Prague on 2nd of June 1541. For the research of an important evidence of a life of Skorina are used German editions of this work.
The philological analysis of the publication allows correcting incorrect interpretations of A.V.Florovskiy.