Louis was suspected, and even accused to the Duke of Brittany, an intimate friend of the deceased prince, of having poisoned his brother.

He caused an inquiry to be instituted into the matter; but the inquiry itself was accused of being incomplete and inconclusive.

"King Louis did not, possibly, cause his brother's death," says M.de Barante, "but nobody thought him incapable of it." The will which Prince Charles had dictated a little before his death increased the horror inspired by such a suspicion.

He manifested in it a feeling of affection and confidence towards the king his brother; he requested him to treat his servants kindly; "and if in any way," he added, "we have ever offended our right dread and right well-beloved brother, we do beg him to be pleased to forgive us; since, for our part, if ever in any matter he hath offended us, we do affectionately pray the Divine Majesty to forgive him, and with good courage and good will do we on our part forgive him." The Duke of Guienne at the same time appointed the king executor of his will.

If we acknowledge, however, that Louis was not incapable of such a crime, it must be admitted that there is no trust-worthy proof of his guilt.