Q: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
This man lost the Battle of Tres Acequias to his rival Jose Carrera, whom he would later have executed. This ruler ordered Antonio Navarro to assassinate his other rival Manuel Rodriguez. He established a navy under the command of the Earl of Dundonald, Thomas Cochrane, though he was eventually overthrown by his chief admiral, Manuel Encalada. Early in his career, he was defeated by Mariano Osorio at the Disaster of Rancagua, leading to the Spanish reconquest of his homeland and requiring his eastern neighbor to resupply him by crossing a mountain chain. He was proclaimed Supreme Dictator after leading a decisive cavalry charge at the Battle of Chacabuco while fighting under Jose de San Martin. For ten points, name this Chilean freedom fighter of Irish descent.
A:
History