 They began to exercise government functions on January 10, 1531.Bishop Ramírez carried with him a letter of strong reprimand for Mexico City Bishop Juan de Zumárraga and instructions to begin "juicios de residencia" against the members of the First Audiencia (Nuño Beltrán de Guzmán, Juan Ortiz de Matienzo and Diego Delgadillo), as well as Cortés and Diego Hernández de Proaño.These investigations took place in due time.