About Casto Fonseca
Casto Fonseca was a politician.
Casto Fonseca (c. 1800 – 24 January 1845) was a Nicaraguan military figure who served as the de facto military leader of Nicaragua from 6 April 1839 to 20 January 1845, preceded by Bernardo Méndez de Figueroa and succeeded by José Trinidad Muñoz.
Rise to power
Assassination of José Zepeda On 25 January 1837 Fonseca and Méndez took the León barracks and took a man named Braulio Mendiola out of jail and commissioned him to arrest the head of state, José Zepeda, and officials of his government. Zepeda and some of his officials were killed, and later buried in the Cemetery of Guadalupe. After his death, José Núñez assumed leadership. Núñez did not arrest the rebels, but rather appeased Méndez and appointed him General Commander of Arms, but Mendiola was captured and executed.
Reestablishment of Military Absolutism Méndez reestablished the military absolutism initiated by José Anacleto Ordóñez in 1823, even against the will of Núñez, who was at that point powerless to oppose. After Méndez's fall from power in 1839, Militarism would continue under Fonseca, who promoted himself to the highest rank of "Grand Marshal" and wore operetta garb.
He became the true arbiter of political life in Nicaragua, with the ability to even influence the elections of the supreme authorities of the State, which aroused the uncalmed traditional passionate hatreds.
Malespín's War
Fonseca supported the parliamentary election of liberal Manuel Pérez as Supreme Director after public elections failed, and this concerned the conservative politicians mainly based in Granada. Under Pérez, Managua's council decided to move the jurisdiction policy of Granada towards the jurisdiction policy of León and Granadans feared that Managua would be controlled militarily by Fonseca, and that the leaders of Leonese liberalism would be a threat to them.
Beginning of the War On 25 October 1844, Salvadoran President Francisco Malespín, handed over the presidency to his Vice President, Joaquín Eufrasio Guzmán, and began leading his troops towards Nicaragua with support from the Honduran Government under Francisco Ferrera. Pérez, lacking the prestige the situation required, resigned, and on 26 September 1844 Emiliano Madriz, based in León, was appointed interim Supreme Director. On 27 November the combined Armies of El Salvador and Honduras, known as the "Ejército Protector de la Paz" under the supreme command of Malespín, with José Santos Guardiola as second and José Trinidad Muñoz as third in command, are confronted by the few troops of Fonseca, concentrated in León, which is besieged. The first battles were disastrous for the attackers and the Hondurans began to withdraw, but Malespín convinced them to stay in combat, not before Manuel Quijano y García and 64 dragoons had already deserted León.
The Granadans offered their support to Fonseca under a pact to improve the regime; but he replied that the government did not agree with rebels, that the Granadans should proceed as they saw fit, and that he reserved giving them the punishment they deserved. Initially, about 400 Matagalpa archers enlisted in the defense of León against the invading army, but due to the mistreatment they received from Fonseca and the breaking of the liberal-conservative alliance, they joined the occupying forces.
Death and legacy When Malespín entered León he executed many prominent citizens of Leonese society at the time, including Minister General Crescencio Navas and Supreme Director Emiliano Madriz. Barrios and Cabañas were able to escape and return to El Salvador, but Fonseca remained, and a drunk Malespín watched his execution.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
Frequently asked questions
Who was Casto Fonseca?
Nicaraguan military general and politician
When was Casto Fonseca born?
Casto Fonseca was born in Captaincy General of Guatemala, León, Nicaragua.
When did Casto Fonseca die?
Casto Fonseca died on 24 January 1845 in León, Nicaragua, Nicaragua.
What was Casto Fonseca's occupation?
Casto Fonseca was a politician.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Casto Fonseca. https://biography.guide/casto-fonseca/
MLA: "Casto Fonseca." Biography.guide, https://biography.guide/casto-fonseca/.
Chicago: "Casto Fonseca." Biography.guide. https://biography.guide/casto-fonseca/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
Page generated 2026-09-27 05:25 UTC