Agustín Muñoz, 1st Duke of Tarancón
Don Agustín Maria Muñoz y de Borbon, 1st Duke of Tarancón, Grandee of Spain (es: Don Agustín Maria Muñoz, duque de Tarancón) (15 March 1837 – 15 July 1855) was the eldest son of Maria Christina, Regent of Spain, and of her morganatic husband Agustín Fernando Muñoz, 1st Duke of Riánsares.
Muñoz was born in Madrid while his mother was still Regent of Spain and his parents' marriage was not publicly known. In 1840 Muñoz went with his parents into exile in France. In 1842 his mother purchased the Château de Malmaison where Muñoz and his siblings grew up.
In 1844 Muñoz's half-sister Queen Isabella II of Spain was declared to be of age. On 19 November 1847 Isabella gave to Muñoz the title duque de Tarancón to which was attached a Grandeza de España. On 10 June 1849 she gave Muñoz a second title, vizconde de Rostrollano.
In 1846 Muñoz became a candidate for the throne of Ecuador. The proposal was made by Juan José Flores, former President of Ecuador, and consisted of two parts: the first one was declare him as King of Ecuador, with his mother and Flores as Regents, and then as Restorer of the monarchy in Perú and Bolivia, converting him in the monarch of the tentative United Kingdom of Ecuador, Perú and Bolivia. The child was referred to in the Spanish press as Prince of the Antilles, and as Prince of Ecuador by his mother. While at first the proposal received some support from the Spanish and British governments, it collapsed.
- Elenco de Grandezas y Títulos Nobilarios Españoles. Madrid: Ediciones Hidalguia, 1996; ISBN 84-87204-84-8.
- Ralph W. Haskins, "Juan José Flores and the Proposed Expedition against Ecuador, 1846-1847"
- The Hispanic American Historical Review 27, no. 3 (August 1947): 467-95. Camilo Destruge, La expedición Flores: Proyecto de monarquia americana, 1846-47 (Guayaquil: Impr. de el Tiempo, 1906).
- Orrego Penagos, Juan Luis. "The general Juan José Flores and Perú". Rumbo al Bicentenario. December 2003. Retrieved April 17, 2015.
- Garibaldi de Mendoza, Rosa (June 28, 2009). "When Ecuador almost became a Kingdom". El Comercio of Perú Newspaper. Retrieved April 17, 2015.