Louis-Etienne Saint-Denis was born on September 22nd, 1788 in Versailles.
The Emperor put him on his testament and entrusted him with a part of his library in order to forward it to the King of Rome. Ali would never be able to perform this mission.
In 1840, Louis-Etienne Saint-Denis participated in the shipment of the return of Napoleon's ashes. In 1851, he met Prince President, the future Napoleon III, face-to-face.
He was decorated with the Legion of Honor on February 23, 1854.