Emperor Napoleon of France captured Rome in 1809 and took the prized manuscript to Paris, where it was examined by Leonhard Hug, a celebrated scholar, but with Napoleon’s downfall the codex was returned to the Vatican in 1815.
अगले ७५ सालों तक फिर से यह वॅटिकन के द्वारा छिपायी हुई, एक रहस्यमय वस्तु बन गयी ।