Family company that had a golden moment in business and community in the first half of the 20th century. XX by the descendant who gave the company its name, Alberto Manso. Great-grandson of Sância Manso and son of the Visconde de Valpereiro, José Manuel Cordeiro Manso, Alberto Manso developed an agricultural company at the beginning of that century that set the pace for small family cultures in the region and which, to this day, focuses on the production of one of the most prestigious national olive oils.