Dukes of los Castillejos Duques de los Castillejos Created by Amadeo of Savoy, king of Spain, duke of Aosta Decree date 19-02-1871 First holder Juan Prim y Agüero, 1st duke of los Castillejos * 1858 Present holder Blanca Muntadas-Prim y Desvalls, 5th duchess of los Castillejos Records #5 Holders Family filter On/Off 1 Juan Prim y Agüero, 1st duke of los Castillejos * 1858 2 Carlos Muntadas y Salvadó Prim, 2nd duke of los Castillejos 3 Luis Muntadas y Salvadó Prim, 3rd duke of Prim 4 Carlos Muntadas-Prim y Audhu, 4th Duque de los Castillejos 5 Blanca Muntadas-Prim y Desvalls, 5th duchess of los Castillejos Corrections and Updates To suggest a correction or an update. Click Here