After the War of Granada and the Muslim threat disappeared, the city changed in appearance, carrying out a series of urban reforms and developing trade. The numerous public works to be carried out attracted labourers from elsewhere, resulting in an increase in the population to 8,000 people. Among the new buildings include the Colegiata de San Patricio, erected in 1553, which is the religious centre of the city, as well as numerous convents of La Merced, Santo Domingo and San Francisco.