Madelberta was a 7th-century Benedictine nun who served as the abbess of Maubeuge Abbey, located in the County of Hainaut. A member of the Merovingian dynasty, she was the daughter of Saint Waltrude and Saint Vincent of Soignies. After her sister, Saint Aldetrude, held the position of abbess, Madelberta succeeded her around the year 697. She lived and worked in the region near the modern border between France and Belgium, eventually passing away in Maubeuge around 705.