The publication is the first facsimile publication in world historiography of the originals of the official messages of the French kings to the Russian kings and letters of Russian sovereigns to the kings of France of the 16th-18th centuries, stored in the fund "Relations between Russia and France" (f. 93) of the Russian State Archive of Ancient Acts and as part of collections dedicated to relations with Russia, in the Diplomatic Archive of the French Foreign Ministry (Les Archives diplomatiques du minist? re des Affaires? trang? res). The publication also contains drafts, copies and translations of letters, which reflected the process of working on the correspondence of monarchs within the framework of clerical and diplomatic practice of Russia and France of the 16th-19th centuries. Facsimile reproduction of sources is combined with diplomatic (based on complicated rules for transmitting texts of the Middle Ages and modern times) publication of letters.