Mariano Osorio

Don Mariano Osorio
Royal Governor of Chile
In office October 10, 1814 – December 26, 1815
Monarch	Ferdinand VII
Preceded by	Mateo de Toro Zambrano
Succeeded by	Francisco Marcó del Pont
Personal details
Born	1777 Seville, Spain
Died	1819 Havana, Cuba
Spouse(s)	Joaquina de la Pezuela
Profession	Brigadier General
Religion	Catholic

Mariano de Osorio (1777–1819) was a Spanish general and Governor of Chile, from 1814 to 1815.

Early career

Osorio was born in Seville, Spain. He joined the Spanish army and as many of his contemporaries, his military career began during the Spanish Peninsular War in 1808 as an artillery general, as well as the professor for mathematics in the military school. In 1810, was appointed head of the military factory of Catalonia. In 1812, was destined to the Royal Army in Peru.

In 1812 he resettled in Peru, where he married Joaquina de la Pezuela, daughter of Peruvian Viceroy Joaquín de la Pezuela. In the Disaster of Rancagua (1814) he was able to defeat the forces of Bernardo O'Higgins and Jose Miguel Carrera. In the same year he became the Governor of Chile.

Chile

In Chile the time of the reconquest by the Spanish military was thus begun. Osorio sought to reinstate order and justice and with military measures he prevented the onslaught of the insurgents.

In 1816 he returned to Lima and Francisco Marcó del Pont was made new Governor of Chile. When the Spaniards lost the Battle of Chacabuco, he returned to Chile. There he succeeded in securing victory in the Second Battle of Cancha Rayada on March 18, 1818. At this battle O'Higgins's arm was injured.

The Battle of Maipu, however, was a major defeat for the Spaniards, and it signified the end of the Spanish authority in almost all of Chile, with the exception of the island of Chiloé and the city of Valdivia.

Osorio proceeded to Cuba, where he died in 1819 of malaria.

Government offices
Preceded by Mateo de Toro Zambrano	Royal Governor of Chile 1814-1815	Succeeded by Francisco Marcó del Pont
Military offices
Preceded by Gabino Gaínza	Captain General of Chile 1814-1815	Succeeded by Rafael Maroto
Preceded by José Ordóñez	Captain General of Chile 1818	Succeeded by Juan Francisco Sánchez

Persondata
Name	Osorio, Mariano
Alternative names
Short description
Date of birth	1777
Place of birth	Seville, Spain
Date of death	1819
Place of death	Havana, Cuba