which razed the town in 1570, 1657, 1687, 1730 and 1751, led the authorities to move the town to its current site in the Valle de la Mocha, alongside the Bío Bío River; the old site lay empty until March 29, 1842, when the present town of Penco was founded.

The new site for the town of Concepción became the main town of the Intendancy of Concepción, whose