He studied at Lycée Français de Madrid and Colegio del Pilar.
His own research into his ancestors' medieval seigneurie has been published as Diario del señor D. Cristoval Crespí desde el día en que fue nombrado presidente del Consejo de Aragón (BOE, 2012), Señorío de Orgaz, 1220-1520: estudio genealógico, patrimonial y jurisdiccional (2013 doctoral thesis), and Los señores de Orgaz, 1220-1520 (Círculo Rojo, 2020).
In the 1980s, with Infanta Pilar de Borbón, he founded the development aid non-governmental organisation Ayuda en Acción, which he presided from 1981 to 2003.
He was also president of the Spanish Assembly of the Sovereign Military Order of Malta, that focuses on medical and social assistance, from 2003 and 2013.
He was a founding member and president (2009–2021) of the Friends of the National Library of Spain Foundation.