The first parish church in Campeche was built in 1540 and dedicated to the Immaculate Conception. As the city grew, a larger church was built, completed thanks to donations from Margarita Guerra. In 1758, it was enlarged and the tower known as “La Española” was built, where the bells that had previously hung from the belfry were placed, as well as the city's first public clock. Inside were four crypts where the bodies of important people from the community were buried, including that of Margarita Guerra.