Phillipe Marquis de Montalt is the owner of the abbey in which La Motte and his family seek refuge. Several years prior, the Marquis had Adeline's father imprisoned and murdered in this same abbey. For this reason, the Marquis is unable to spend the night in the building. The Marquis decides to use his power over La Motte to make him give Adeline to the Marquis as his wife. Later, when the Marquis realizes Adeline is his niece, he tries to use this same power to persuade La Motte to murder Adeline. When La Motte does not commit the murder but instead helps Adeline escape, the Marquis has La Motte put into jail because La Motte had robbed the Marquis in the past.