Marquesses of la Viesca de la Sierra Marqueses de la Viesca de la Sierra First holder Federico de la Viesca y de la Sierra, 1st marquess of Viesca de la Sierra Records #2 Holders Family filter On/Off 1 Federico de la Viesca y de la Sierra, 1st marquess of Viesca de la Sierra Arsenio Martinez de Campos y de la Viesca, 2nd duke of Seo de Urgel * 1889 Corrections and Updates To suggest a correction or an update. Click Here