Following the destruction of the temples, Augustinians and Franciscans moved in to build churches and monasteries. The Augustinians began construction of the Culhuacán monastery in 1552, built in various stages. It was dedicated to John the Baptist. They founded a school to teach indigenous languages which operated for 100 years. The Franciscans built a monastery in Huitzilopochco as well as small churches in San Marcos Mexicaltzingo and in Santa Marta and Nativitas Tepetlacingo. The churches of San Lucas Evangelista, San Marcos Mexicaltzingo, San Juan Evangelista and the chapels of Calvario and Santa Martha Acatitla were all built over foundations of pre-Hispanic temples which the Spanish had destroyed. These were built with much of the material from the destroyed temples. However, by the end of the 18th century, all of these would be in the hands of normal clergy.