María Del Rosario Cayetana Fitz-James Stuart Y Silva

• Alfonso Martínez de Irujo y Fitz-James Stuart, 15th Duke of Aliaga, born 22 October 1950 in Madrid. On 4 July 1977 he married María de la Santísima Trinidad de Hohenlohe-Langenburg y de la Cuadra (born 8 April 1957), whom he later divorced.
- Luis Martínez de Irujo y Hohenlohe (born 26 May 1978)
- Javier Martínez de Irujo y Hohenlohe (born January 1981). He married sherry heiress Inés Domecq y Govente in 2008.
• Jacobo Martínez de Irujo y Fitz-James Stuart, 23rd Count of Siruela, born 15 July 1954 in Madrid. On 1 November 1980, he married María Eugenia Fernández de Castro y Fernández-Shaw (born 15 October 1954) but they later divorced. He married journalist, editor and writer Inka Martí Kiemann in April 2004.