It was destroyed by Lautaro in 1554, and rebuilt and destroyed again by Lautaro in 1555. It was reestablished in 1557 during the governorship of García Hurtado de Mendoza when he landed there and built a fort on the Alto de Pinto. It became the headquarters of the military forces engaged against the Mapuche in Araucanía over the next two centuries growing to a population of 10,000 despite suffering a siege in 1564 and other attacks by the Mapuche.