0 ABSTRACT In my thesis I focus on the political situation in the Kingdom of Bohemia and the Kingdom of France during the Great Western Schism, particularly its first two thirds. I put emphasis on the personality of Honoré Bovet, who was a diplomat and a messenger of the French king and who visited the court of the Bohemian king, Wecleslas IV. in 1399 My work is based on primary and secondary sources and scientific and specialised literature concerning the subject mentioned above. In addition I made use of my one- semester study program in France where I attended the lectures of and consultations with French medieval historians. First I describe in the thesis the ecclesiastical and political situation in both kingdoms. The next chapters are dedicated to the personality of Honoré Bovet and his writings related to his opinion on the Great Western Schism and the church in general. As a result of the research I present a general attitude of the French Kingdom to the Bohemian Kingdom, particularly king Wenceslas IV, in the period of the Great Western Schism and the dual papacy. Moreover, based on his writings I express Bovet's view of the Schism and the personalities involved in the Schism.