María Cayetana de Silva, 13th Duchess of Alba María Cayetana de Silva, 13th Duchess of Alba María del Pilar Teresa Cayetana de Silva-Álvarez de Toledo y Silva, 13th Duchess of Alba, GE (full name, see infobox; 10 June 1762 – 23 July 1802), was a Spanish aristocrat and a popular subject of the painter Francisco de Goya y Lucientes. María del Pilar Teresa Cayetana de Silva Alvarez de Toledo became the 13th Duchess of Alba in 1776. Her marriage to José Álvarez de Toledo, 11th Marquis of Villafranca, made her and her husband the wealthiest couple in the Kingdom of Spain; their only rivals to this title were
Spanish succession issue of 1789 enormously and might suggests distinct interpretations. One group of works sort of imply that in 1789 the succession law was effectively changed. There are authors who claim that Carlos IV decreed the Pragmatic Sanction, though he kept it secret; others tend to agree vaguely that the 1713 law was effectively altered in 1789, though the decision was not published. Another group of works is fathered by students who wrote highly ambiguous paragraphs; some note that the 1713 law was indeed changed in 1789, but the decision was put into effect in 1830, some point that the 1713 law "was modified