The collection, previously held at McGill University, contains a significant amount of information concerning the latter years of Napoleon’s reign (between approximately 1810-1815), with documents relating to the Armistice at Pleswitz and the diplomatic negotiations surrounding the Treaty of Fontainebleau, including records of day-to-day negotiations concerning Pleswitz and Fontainebleau. Diplomatic dealings between Metternich and Caulaincourt are also heavily represented. Folder 17 contains an unpublished description of the post-Waterloo Hundred Days by Caulaincourt. Caulaincourt recounts a broad narrative from the defeat at Waterloo to the Bourbon Restoration, including important descriptions of the question of succession and of the final push made by the Allies to restore Louis XVIII to the throne.