Gerberge Lower Lorraine (ca. 980-1018) was a daughter of Charles of Lower Lorraine . The identity of her mother is unknown. Presumably Gerberga a daughter of Charles from his marriage to an unknown daughter of Robert I of Meaux . There is also a theory that she would be born of the second marriage of Charles, with one Adelheid from the gentry - however, this is very unlikely given Charles's aspirations to become king of France.
Gerberga married Earl Lambert I of Leuven , and received as dowry the county Brussels it (between Senne and Dyle ).
Gerberga became the mother of:
Henry I (-1038)
Lambert II
Mathilde married Eustaas I of Boulogne