 Among his teachers he names fray Juan Bautista (who taught him theology) and Antonio Valeriano (who taught him Nahuatl and whom he especially praised for his talents).At some time in the early 1580s he was sent by his superiors to Guatemala where he encountered the conquistador Bernal Díaz del Castillo.By 1584 he was certainly at the convent of San Francisco, where he assisted in the infirmary.