After playing a round of tennis at a jeu de paume court "pré d'Ainay", the Dauphin asked for a cup of water, which was brought to him by his secretary, Count Montecuccoli. After drinking it, Francis collapsed and died several days later. Montecuccoli, who was brought to the court by Catherine de' Medici, was accused of being in the pay of Charles V, and when his quarters were searched a book on different types of poison was found. Catherine de' Medici was well known to have an interest in poisons and the occult. Under torture, Montecuccoli confessed to poisoning the Dauphin.