Duke of Alba the House of Álvarez de Toledo (extinct in 1755), the House of Silva (extinct in 1802), and the House of FitzJames, which descends from an illegitimate son of King James II of England. Famous dukes include Don Fernando Alvarez de Toledo, 3rd Duke of Alba, governor of the Spanish Netherlands (references to "Alba" (Alva in Dutch), particularly in the context of Dutch history, are usually about him), and Doña María del Pilar de Silva, 13th Duchess of Alba, a muse of the painter Francisco Goya. Various dukes have married into the families of Christopher Columbus and Cosimo de Medici, as
Cayetana Fitz-James Stuart, 18th Duchess of Alba Cathedral by Msgr. Carlos Amigo Vallejo where the Royal Family were represented by the Infanta Elena. Cayetana's patriline is the line from which she is descended via her father's direct male lineage, father to son. Patrilineal descent is the principle behind membership in Ducal Houses, as it can be traced back through the generations – which means that Cayetana's "historically accurate" House name is FitzJames-Stuart. Cayetana Fitz-James Stuart, 18th Duchess of Alba María del Rosario Cayetana Fitz-James Stuart y Silva, 18th Duchess of Alba, GE, OIC, OSH, DOA, OAX, OSG, OPC (28 March 1926 – 20 November 2014), was head