In fact, the agreement, if I'm not mistaken, is for him to not be able to continue calling himself "Duque de Alba" after her death.
Doña Cayetana's children were quite perturbed by her decision to remarry at such an advanced age. This led to the division of her fortune among the children, while doña Cayetana was placed on a sort of receivership. She is given an "X" amount of money to live on, as well as the use of her many residences.
The division of the fortune among the children has already caused much ill-will between them. The Count of Siruela, Jacobo Martínez de Irujo y FiztStuart, feels he was not appropriately compensated in the distribution. Stormy times are beginning to gather over the Liria Palace.
While in Madrid in 2007, to attend the 70th birthday of Archduchess Helen of Austria, we all went to the Liria Palace as guests of the Alba family. It was a wonderful visit. We got to walk, unbothered, through countless salons filled with priceless artwork on every wall...exquisite objets on every single piece of furniture...and a lovely cocktail in the concert hall before dinner. At the end of our stay we all walked out of Liria through the main gates and walked along Madrid streets to an establishment the family patrons frequently.