He also inherited the titles of Duke of Lécera, Almazán and Bourneville, as well as Count-Duke of Aliaga, Marquess of Ornani, Almenara and Torres, and Count of Belchite, Salinas, Ribadeo and Aranda.

In 1824, King Ferdinand VII of Spain made him Sumiller de Corps and in 1826, he became Director of the Prado Museum.

During his period as director, the museum acquired the Christ Crucified by Velázquez, and the collection of María Teresa de Borbón, 15th Countess of Chinchón.

[3] In 1801, he married Juana Nepomucena Fernández de Córdoba Villarroel Spínola y la Cerda (1785–1813), 8th Countess of Salvatierra, and had three children:[1] The Duke of Híjar died in Madrid in 16 September 1863.

[1] Through his eldest son Cayetano, he was a grandfather of Agustín de Silva y Bernuy, 14th Duke of Híjar.