Cayetana Fitz-James Stuart, 18th Duchess of Alba (d. 2014)
María del Rosario Cayetana Fitz-James Stuart y Silva, 18th Duchess of Alba GE (28 March 1926 – 20 November 2014) was one of the most senior aristocrats in Spain, as well as the most titled aristocrat in the world, a distinction now held by the Princess Victoria of Hohenlohe-Langenburg, 20th Duchess of Medinaceli.