Laure de Mauvoisin, Lady of Bapaume

Laure de Mauvoisin (born c. 1329) was the elder daughter of Guy VII de Mauvoisin, baron of Rosny, and Roberte de Beaumetz. From her mother she inherited the châtellenie of Bapaume and other Artois lordships, lands considered more valuable than Rosny itself.

She married Robert de Beaussart, seigneur of Wingles and constable of Flanders. Their daughters were Ide, who married Jean de Saquainville, and Béatrix, who married twice, her second husband being Hugues de Melun, burgrave of Ghent.