Mariano de Osorio was a Spanish general and Governor of Chile, from 1814 to 1815. Wikipedia
Born: 1777, Seville, Spain
Died: 1819 (age 42 years), Havana, Cuba
Previous office: Royal Governor of Chile (1814–1815)
Nationality: Spanish
Spouse: Joaquina de la Pezuela (m. 1812–1819)