Gerberga's father was Conrad I of France and her mother was Maud De France. Her paternal grandparents were Rudolph II de Bourgogne and Bertha of Swabia; her maternal grandparents were Louis IV 'The Overseas' of France and Gerberga von Sachsen. She had a brother and two sisters, named Rudolf III, Bertha and Gerberga of. She had a half-sister named Gisele of.
She had a biological daughter named Gisela.