Marquesses of Valderas Marqueses de Valderas Records #3 Holders Family filter On/Off 2 Maria Isabel Alvarez y Montes, 2nd duchess of Castro Enríquez * 1848 3 María Isabel de Arróspide y Alvarez, 3rd marquise of Valderas * 1876 Hipólito Sanchiz Álvarez de Toledo * 1969 Corrections and Updates To suggest a correction or an update. Click Here