1911 Encyclopædia Britannica, Volume 10… (1911)
“ At the age of fourteen he went to Paris to continue his studies; and in 1647 he was sent to Rome in the capacity of secretary of embassy to the Marquis de Marueil. His residence at Rome he turned to good account by diligent study of its ancient monuments, by examination of the literary treasures of its libraries, and by cultivating the acquaintance of men eminent in literature and in art, with whom he was brought into contact through his translation of Cardinal Barberini’s Life of Pius V. Among his friends was Nicholas Poussin, whose counsels were of great value to him. ”
