gilles de rais (1405 ?–26 october 1440) was a marshal of france, joan of arc's comrade in arms, and a murderer. he was the son of guy de laval/rais and marie de craon. he became rich when a relative died. he was made a marshal of france in 1429. he spent much of his money putting on a play that he wrote. he dabbled in alchemy. his criminal career began in 1434. in 1440, he was arrested, tried, and hanged. de rais may have killed 140 people. most of his victims were young boys. he may have been the inspiration for the 1697 fairy tale "bluebeard" by charles perrault.