Marquesses of Pazo de la Merced Marqueses del Pazo de la Merced First holder José de Elduayen, 1st marquess del Pazo de la Merced * 1823 Records #2 Holders Family filter On/Off 1 José de Elduayen, 1st marquess del Pazo de la Merced * 1823 Gonzalo Fernández-Castaño y Elduayen, marquess del Pazo de La Merced Corrections and Updates To suggest a correction or an update. Click Here