Bluebeard is loosely based off a true story. The author, Perrault wrote it around a man called Conomor the Cursed, a Breton chief. He was told that his son would kill him and take everything that he had, so he killed his pregnant wife and his unborn child. But Perrault was more fascinated by Gilles de Rais, a wealthy 15th century nobleman, a hero of the Hundred Years’ War, Joan of Arc’s protector on the battlefield. After he left the military he became a notorious serial killer of children. He was given the nickname, Bluebeard, because his horse’s sleek fur looked blue in the daylight. At his shocking trial, he described in detail how he had preyed upon and tortured innocent children. Perrault drew upon these facts to conjure up his own nightmarish character.
Real life events
The miller wanted one of his daughters to marry Bluebeard. After a diner party with him, the youngest daughter didn't think that he was that bad. They got married.
He told her that she can go in any room that she wanted with all of his riches, but she can never use the smallest key and go into the small closet at the end of the hall. She wanted to go into the one room he told her not to.
When she went to open the small closet, she saw all of Bluebeards previous wives hung up along the wall. Bluebeard caught her and tried to kill her for her disobedience.
She got her sister to call her brothers to come and save her.
Her brothers got there in time to kill Bluebeard. All of his wealth went to his wife.