The biography of this learned councilor from Burgundy leads into a France torn by war and civil strife, as well as the major church-political conflicts in Europe between council and pope, the Catholic Church and Hussitism. It follows the path of a pupil from the famous Collège de Dormans in Paris, who becomes the councilor to Duke John the Fearless and the English-French King Henry VI, then president of the Council of Basel and head of the council's legations to the Hussites. Biographical sketches of Philibert's surroundings illuminate and contextualize this seemingly successful story. Investigations into the life stages in Paris, Coutances, Basel, and Prague highlight the breaks and threats in his career and provide results that are of interest for the history of France and the Church at the end of the Middle Ages beyond the individual case.