It was her son Fernando de Silva, born in his grandfather's lifetime, who received the title at birth.

Cayetana de Silva claimed and received the title 13th Duchess of Alba, becoming the only female holder of the dukedom of Huéscar; her husband became jure uxoris Duke of Alba, his fifth ducal title (including Duke of Medina Sidonia, Montalto, Bivona, Fernandina).

Cayetana de Silva died childless and most of her titles were inherited by her nephew, Carlos Miguel Fitz-James Stuart, 7th Duke of Berwick.

Sixty years later, his son Jacobo asked for the resumption of the dormant dukedom.

On 6 September 1871, it was restored with a grandeeship of Spain[4] to his son and heir, Carlos María Fitz-James Stuart.