Recovering the vast corpus of Iberian casuistical literature produced in early modern Asia is fraught with challenges. One major hurdle is accurately identifying manuscripts and their authors. This post examines a recently unearthed manuscript attributed to Francisco Rodrigues (c. 1515–1573), a prominent Jesuit priest in early modern Portuguese India. It argues that the attribution is likely incorrect, while commenting on the complex process involved in the making of intellectual authorities in the early modern world.