Gerberga of Lower Lorraine

Gerberga of Lower Lorraine (975-1019), Countess of Louvain, was the daughter of Charles, Duke of Lower Lorraine, himself the son of Louis IV of France and Gerberga of Saxony. Her mother was Adelaide/Agnes de Vermandois.

Personal life
She married Lambert I, Count of Louvain and they had:
 * Henry I
 * Lambert II
 * Matilda (also called Maud), who married Eustace I, Count of Boulogne
 * Reginar