The diploma thesis concerns the questions of hybrid literature, especially the novel HHhH by Laurent Binet. Even though history and fiction can impact and enrich each other, their relationship is quite problematic. Therefore philosophers, historians and literary critics are trying to answer the questions of how to write (about) history. Laurent Binet tackles this in his novel HHhH, in which two storylines keep alternating. In the first one narrator constantly addresses the reader, expressing his doubts if it is even possible to give a faithful account of an historical event. In the second storyline he portrays the events that led to the assassination of deputy Reich Protector of the Bohemia and Moravia Reinhard Heydrich. The goal of the thesis is to analyse the relationship between history and fiction, as this relationship has during the 20th century undergone rapid changes, which are also apparent in the analysed text. The thesis is divided in two parts. The first, which serves as a theoretical base for the subsequent analysis of HHhH, depicts the historiographical approaches, which have changed and evolved significantly in the 20th century. The second part tracks the reflections of the particular historiographical approaches in HHhH and examines, which conclusions has the author reached in his...