He wrote A História das Missões dos Jesuítas no Oriente, Até ao Ano de 1568 (History of the Jesuit Missionaries to the East, until 1568). The manuscript was sent to Rome, translated into Latin, and was then given to the young novice Giovanni Pietro Maffei (1533-1603) to prepare it for publication.
He composed A História das Missões dos Jesuítas no Oriente, Até ao Ano de 1568 (History of the Jesuit Missionaries to the East, until 1568). The manuscript was then dispatched to Rome, where it underwent a Latin translation and was subsequently entrusted to Giovanni Pietro Maffei (1533-1603) for publication preparation.