Answer:
He was overthrown and exiled to England.
Step-by-step explanation:
Juan Manuel de Rosas ruled Argentina from 1829 - 1852. He became governor of Buenos Aires after overthrowing General Juan Lavalle. Rosas ruled with absolute power for the seventeen years. Rosas, as a dictator, controlled the Catholic Church and unified the country through assassinations and terrorising. He was not able to rule for long as he defeated in the Battle of Caseros in 1852 under the leadership of Justo José de Urquiza. He went into exile in England and died there in 1877.