On the 3d of August Louis was attacked by the epidemic fever, and obliged to keep his bed in his tent.

He asked news of his son John Tristan, Count of Nevers, who had fallen ill before him, and whose recent death, aboard the vessel to which he had been removed in hopes that the sea air might be beneficial, had been carefully concealed from him.

The count, as well as the Princess Isabel, married to Theobald the Young, King of Navarre, was a favorite child of Louis, who, on hearing of his loss, folded his hands and sought in silence and prayer some assuagement of his grief.

His malady grew worse; and having sent for his successor, Prince Philip (Philip the Bold), he took from his hour-book some instructions which he had written out for him, with his own hand and in French, and delivered them to him, bidding him to observe them scrupulously.

He gave likewise to his daughter Isabel, who was weeping at the foot of his bed, and to his son-in-law the King of Navarre, some writings which had been intended for them, and he further charged Isabel to deliver another to her youngest sister, Agnes, affianced to the Duke of Burgundy.