 The King 's sudden onset of insanity was seen by some as a sign of divine anger and punishment , and by others as the result of magic . Modern historians speculate that he may have suffered from the onset of paranoid schizophrenia . The comatose king was returned to Le Mans , where Guillaume de Harsigny — a venerated and well @-@ educated 92 @-@ year @-@ old physician — was summoned to treat him . Charles regained consciousness and his fever subsided ; he was gradually returned to Paris in September . 
