A book of lineage which lists titles of nobles and other significant persons, with occasional historical references. Among those listed include: the Dukes of Nájera; Acuñas, señores de Valencia, dukes and counts; Dukes of Alva; Velascos, counts of Haro; Marquises of Vélez; Count of Fuensalida; Count of Cifuentes; Count of Orgaz; count of Chinchón; Marquis of Cañete; Count of Oropesa; Count of Puño en Rostro; Count of Medellín; Admiral of Castilla; Duke of Maqueda; Marquis of Tarifa, Count of Hureña; Duke of Medinaceli; Duke of Medina Sidonia, Duke of Arcos; Duke of Alburquerque; Marquis of Villena; señores of Pacheco.